Home / 87,627.30-131,440.95-54,239.10

Finding the Fourth Proportional to 87,627.30, 131,440.95 and 54,239.10

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Solution

The fourth proportional to 87,627.30, 131,440.95 and 54,239.10 is: 81,358.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,627.30 : 131,440.95 = 54,239.10 : x
  2. Step 2: Convert to fraction form
    87,627.30/131,440.95 = 54,239.10/x
  3. Step 3: Cross multiply
    87,627.30x = 131,440.95 × 54,239.10
  4. Step 4: Simplify right side
    87,627.30x = 7,129,238,831.15
  5. Step 5: Solve for x
    x = 7,129,238,831.15/87,627.30
  6. Step 6: Final answer
    x = 81,358.65

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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.