Home / 87,678.28-131,505.18-28,514.44

Finding the Fourth Proportional to 87,678.28, 131,505.18 and 28,514.44

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Solution

The fourth proportional to 87,678.28, 131,505.18 and 28,514.44 is: 42,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,678.28 : 131,505.18 = 28,514.44 : x
  2. Step 2: Convert to fraction form
    87,678.28/131,505.18 = 28,514.44/x
  3. Step 3: Cross multiply
    87,678.28x = 131,505.18 × 28,514.44
  4. Step 4: Simplify right side
    87,678.28x = 3,749,796,564.80
  5. Step 5: Solve for x
    x = 3,749,796,564.80/87,678.28
  6. Step 6: Final answer
    x = 42,767.68

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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.