Finding the Fourth Proportional to 86,434.62, 129,670.17 and 36,545.52
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Solution
The fourth proportional to 86,434.62, 129,670.17 and 36,545.52 is: 54,825.99
Step by Step Solution
- Step 1: Write the proportion equation
86,434.62 : 129,670.17 = 36,545.52 : x - Step 2: Convert to fraction form
86,434.62/129,670.17 = 36,545.52/x - Step 3: Cross multiply
86,434.62x = 129,670.17 × 36,545.52 - Step 4: Simplify right side
86,434.62x = 4,738,863,791.14 - Step 5: Solve for x
x = 4,738,863,791.14/86,434.62 - Step 6: Final answer
x = 54,825.99
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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.