Home / 87,339.08-130,915.20-45,176.73

Finding the Fourth Proportional to 87,339.08, 130,915.20 and 45,176.73

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Solution

The fourth proportional to 87,339.08, 130,915.20 and 45,176.73 is: 67,716.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,339.08 : 130,915.20 = 45,176.73 : x
  2. Step 2: Convert to fraction form
    87,339.08/130,915.20 = 45,176.73/x
  3. Step 3: Cross multiply
    87,339.08x = 130,915.20 × 45,176.73
  4. Step 4: Simplify right side
    87,339.08x = 5,914,320,643.30
  5. Step 5: Solve for x
    x = 5,914,320,643.30/87,339.08
  6. Step 6: Final answer
    x = 67,716.78

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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.