Finding the Fourth Proportional to 72,871.44, 100,350.84 and 63,306.96
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Solution
The fourth proportional to 72,871.44, 100,350.84 and 63,306.96 is: 87,179.65
Step by Step Solution
- Step 1: Write the proportion equation
72,871.44 : 100,350.84 = 63,306.96 : x - Step 2: Convert to fraction form
72,871.44/100,350.84 = 63,306.96/x - Step 3: Cross multiply
72,871.44x = 100,350.84 × 63,306.96 - Step 4: Simplify right side
72,871.44x = 6,352,906,613.85 - Step 5: Solve for x
x = 6,352,906,613.85/72,871.44 - Step 6: Final answer
x = 87,179.65
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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.