Home / 87,337.76-130,957.43-30,385.55

Finding the Fourth Proportional to 87,337.76, 130,957.43 and 30,385.55

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Solution

The fourth proportional to 87,337.76, 130,957.43 and 30,385.55 is: 45,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,337.76 : 130,957.43 = 30,385.55 : x
  2. Step 2: Convert to fraction form
    87,337.76/130,957.43 = 30,385.55/x
  3. Step 3: Cross multiply
    87,337.76x = 130,957.43 × 30,385.55
  4. Step 4: Simplify right side
    87,337.76x = 3,979,213,392.43
  5. Step 5: Solve for x
    x = 3,979,213,392.43/87,337.76
  6. Step 6: Final answer
    x = 45,561.20

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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.