Finding the Fourth Proportional to 71,916.97, 107,744.24 and 40,161.73
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Solution
The fourth proportional to 71,916.97, 107,744.24 and 40,161.73 is: 60,169.32
Step by Step Solution
- Step 1: Write the proportion equation
71,916.97 : 107,744.24 = 40,161.73 : x - Step 2: Convert to fraction form
71,916.97/107,744.24 = 40,161.73/x - Step 3: Cross multiply
71,916.97x = 107,744.24 × 40,161.73 - Step 4: Simplify right side
71,916.97x = 4,327,195,295.09 - Step 5: Solve for x
x = 4,327,195,295.09/71,916.97 - Step 6: Final answer
x = 60,169.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.