Finding the Fourth Proportional to 77,163.87, 106,489.17 and 45,332.49
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Solution
The fourth proportional to 77,163.87, 106,489.17 and 45,332.49 is: 62,560.62
Step by Step Solution
- Step 1: Write the proportion equation
77,163.87 : 106,489.17 = 45,332.49 : x - Step 2: Convert to fraction form
77,163.87/106,489.17 = 45,332.49/x - Step 3: Cross multiply
77,163.87x = 106,489.17 × 45,332.49 - Step 4: Simplify right side
77,163.87x = 4,827,419,234.13 - Step 5: Solve for x
x = 4,827,419,234.13/77,163.87 - Step 6: Final answer
x = 62,560.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.