Finding the Fourth Proportional to 87,481.05, 131,207.49 and 31,310.70
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Solution
The fourth proportional to 87,481.05, 131,207.49 and 31,310.70 is: 46,961.01
Step by Step Solution
- Step 1: Write the proportion equation
87,481.05 : 131,207.49 = 31,310.70 : x - Step 2: Convert to fraction form
87,481.05/131,207.49 = 31,310.70/x - Step 3: Cross multiply
87,481.05x = 131,207.49 × 31,310.70 - Step 4: Simplify right side
87,481.05x = 4,108,198,357.14 - Step 5: Solve for x
x = 4,108,198,357.14/87,481.05 - Step 6: Final answer
x = 46,961.01
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.