Home / 87,587.20-131,380.80-25,257.70

Finding the Fourth Proportional to 87,587.20, 131,380.80 and 25,257.70

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Solution

The fourth proportional to 87,587.20, 131,380.80 and 25,257.70 is: 37,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,587.20 : 131,380.80 = 25,257.70 : x
  2. Step 2: Convert to fraction form
    87,587.20/131,380.80 = 25,257.70/x
  3. Step 3: Cross multiply
    87,587.20x = 131,380.80 × 25,257.70
  4. Step 4: Simplify right side
    87,587.20x = 3,318,376,832.16
  5. Step 5: Solve for x
    x = 3,318,376,832.16/87,587.20
  6. Step 6: Final answer
    x = 37,886.55

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1.5x scale

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.