Home / 87,626.10-131,439.15-54,383.70

Finding the Fourth Proportional to 87,626.10, 131,439.15 and 54,383.70

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Solution

The fourth proportional to 87,626.10, 131,439.15 and 54,383.70 is: 81,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,626.10 : 131,439.15 = 54,383.70 : x
  2. Step 2: Convert to fraction form
    87,626.10/131,439.15 = 54,383.70/x
  3. Step 3: Cross multiply
    87,626.10x = 131,439.15 × 54,383.70
  4. Step 4: Simplify right side
    87,626.10x = 7,148,147,301.86
  5. Step 5: Solve for x
    x = 7,148,147,301.86/87,626.10
  6. Step 6: Final answer
    x = 81,575.55

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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.