Home / 87,435.92-131,126.04-28,257.44

Finding the Fourth Proportional to 87,435.92, 131,126.04 and 28,257.44

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Solution

The fourth proportional to 87,435.92, 131,126.04 and 28,257.44 is: 42,377.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,435.92 : 131,126.04 = 28,257.44 : x
  2. Step 2: Convert to fraction form
    87,435.92/131,126.04 = 28,257.44/x
  3. Step 3: Cross multiply
    87,435.92x = 131,126.04 × 28,257.44
  4. Step 4: Simplify right side
    87,435.92x = 3,705,286,207.74
  5. Step 5: Solve for x
    x = 3,705,286,207.74/87,435.92
  6. Step 6: Final answer
    x = 42,377.16

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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.