Finding the Fourth Proportional to 87,156.97, 120,288.68 and 48,918.79
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Solution
The fourth proportional to 87,156.97, 120,288.68 and 48,918.79 is: 67,514.70
Step by Step Solution
- Step 1: Write the proportion equation
87,156.97 : 120,288.68 = 48,918.79 : x - Step 2: Convert to fraction form
87,156.97/120,288.68 = 48,918.79/x - Step 3: Cross multiply
87,156.97x = 120,288.68 × 48,918.79 - Step 4: Simplify right side
87,156.97x = 5,884,376,676.30 - Step 5: Solve for x
x = 5,884,376,676.30/87,156.97 - Step 6: Final answer
x = 67,514.70
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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.