Home / 87,229.25-130,760.78-28,023.37

Finding the Fourth Proportional to 87,229.25, 130,760.78 and 28,023.37

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Solution

The fourth proportional to 87,229.25, 130,760.78 and 28,023.37 is: 42,008.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,229.25 : 130,760.78 = 28,023.37 : x
  2. Step 2: Convert to fraction form
    87,229.25/130,760.78 = 28,023.37/x
  3. Step 3: Cross multiply
    87,229.25x = 130,760.78 × 28,023.37
  4. Step 4: Simplify right side
    87,229.25x = 3,664,357,410.04
  5. Step 5: Solve for x
    x = 3,664,357,410.04/87,229.25
  6. Step 6: Final answer
    x = 42,008.35

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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.