Rashon is saving money and plans on making monthly contributions into an account earning an annual interest rate of 3.9%compounded monthly. If Rashon would like to end up with $144,000 after 10 years, how much does he need to contribute to the account every month, to the nearest dollar? Use the following formula to determine your answer.A=d(i(1+i)n−1)A= the future value of the account after n periodsd= the amount invested at the end of each periodi= the interest rate per periodn= the number of periodsAnswer:
Q. Rashon is saving money and plans on making monthly contributions into an account earning an annual interest rate of 3.9% compounded monthly. If Rashon would like to end up with $144,000 after 10 years, how much does he need to contribute to the account every month, to the nearest dollar? Use the following formula to determine your answer.A=d(i(1+i)n−1)A= the future value of the account after n periodsd= the amount invested at the end of each periodi= the interest rate per periodn= the number of periodsAnswer:
Identify Given Values: Identify the given values from the problem.A=$144,000 (future value of the account)annual interest rate = 3.9%n = 10 years ∗12 months/year = 120 months (number of periods)i = (3.9% annual interest rate) / 12 months = 0.00325 (interest rate per period)
Plug into Formula: Plug the identified values into the compound interest formula.A=d×((1+i)n−1)/i$144,000=d×((1+0.00325)120−1)/0.00325
Calculate Exponentiation: Calculate the value inside the parentheses (1+i)n.(1+0.00325)120=(1.00325)120
Substitute Calculated Value: Calculate the exponentiation from the previous step.(1.00325)120≈1.457689
Calculate Numerator: Substitute the calculated value back into the formula.$144,000=d×(0.003251.457689−1)
Divide by Interest Rate: Calculate the numerator of the fraction.1.457689−1=0.457689
Solve for d: Divide the numerator by the interest rate per period.0.003250.457689≈140.8264615
Round Monthly Contribution: Solve for d by dividing the future value A by the result from the previous step.$144,000/140.8264615≈1022.55
Round Monthly Contribution: Solve for d by dividing the future value A by the result from the previous step.$144,000/140.8264615≈1022.55Round the monthly contribution to the nearest dollar.d≈$1023