Finding the Fourth Proportional to 86,251.16, 129,332.98 and 39,463.94
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Solution
The fourth proportional to 86,251.16, 129,332.98 and 39,463.94 is: 59,175.89
Step by Step Solution
- Step 1: Write the proportion equation
86,251.16 : 129,332.98 = 39,463.94 : x - Step 2: Convert to fraction form
86,251.16/129,332.98 = 39,463.94/x - Step 3: Cross multiply
86,251.16x = 129,332.98 × 39,463.94 - Step 4: Simplify right side
86,251.16x = 5,103,988,962.74 - Step 5: Solve for x
x = 5,103,988,962.74/86,251.16 - Step 6: Final answer
x = 59,175.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.