Finding the Fourth Proportional to 88,981.12, 122,793.92 and 48,694.88
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Solution
The fourth proportional to 88,981.12, 122,793.92 and 48,694.88 is: 67,198.92
Step by Step Solution
- Step 1: Write the proportion equation
88,981.12 : 122,793.92 = 48,694.88 : x - Step 2: Convert to fraction form
88,981.12/122,793.92 = 48,694.88/x - Step 3: Cross multiply
88,981.12x = 122,793.92 × 48,694.88 - Step 4: Simplify right side
88,981.12x = 5,979,435,199.13 - Step 5: Solve for x
x = 5,979,435,199.13/88,981.12 - Step 6: Final answer
x = 67,198.92
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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.