Finding the Fourth Proportional to 74,432.69, 102,691.26 and 47,590.91
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Solution
The fourth proportional to 74,432.69, 102,691.26 and 47,590.91 is: 65,658.92
Step by Step Solution
- Step 1: Write the proportion equation
74,432.69 : 102,691.26 = 47,590.91 : x - Step 2: Convert to fraction form
74,432.69/102,691.26 = 47,590.91/x - Step 3: Cross multiply
74,432.69x = 102,691.26 × 47,590.91 - Step 4: Simplify right side
74,432.69x = 4,887,169,998.99 - Step 5: Solve for x
x = 4,887,169,998.99/74,432.69 - Step 6: Final answer
x = 65,658.92
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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.