Finding the Fourth Proportional to 87,514.02, 120,770.28 and 49,790.70
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Solution
The fourth proportional to 87,514.02, 120,770.28 and 49,790.70 is: 68,711.70
Step by Step Solution
- Step 1: Write the proportion equation
87,514.02 : 120,770.28 = 49,790.70 : x - Step 2: Convert to fraction form
87,514.02/120,770.28 = 49,790.70/x - Step 3: Cross multiply
87,514.02x = 120,770.28 × 49,790.70 - Step 4: Simplify right side
87,514.02x = 6,013,236,780.40 - Step 5: Solve for x
x = 6,013,236,780.40/87,514.02 - Step 6: Final answer
x = 68,711.70
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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.