Finding the Fourth Proportional to 74,332.05, 102,663.37 and 48,951.87
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Solution
The fourth proportional to 74,332.05, 102,663.37 and 48,951.87 is: 67,609.65
Step by Step Solution
- Step 1: Write the proportion equation
74,332.05 : 102,663.37 = 48,951.87 : x - Step 2: Convert to fraction form
74,332.05/102,663.37 = 48,951.87/x - Step 3: Cross multiply
74,332.05x = 102,663.37 × 48,951.87 - Step 4: Simplify right side
74,332.05x = 5,025,564,044.62 - Step 5: Solve for x
x = 5,025,564,044.62/74,332.05 - Step 6: Final answer
x = 67,609.65
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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.