Home / 72,434.56-108,607.92-28,023.88

Finding the Fourth Proportional to 72,434.56, 108,607.92 and 28,023.88

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Solution

The fourth proportional to 72,434.56, 108,607.92 and 28,023.88 is: 42,018.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,434.56 : 108,607.92 = 28,023.88 : x
  2. Step 2: Convert to fraction form
    72,434.56/108,607.92 = 28,023.88/x
  3. Step 3: Cross multiply
    72,434.56x = 108,607.92 × 28,023.88
  4. Step 4: Simplify right side
    72,434.56x = 3,043,615,317.13
  5. Step 5: Solve for x
    x = 3,043,615,317.13/72,434.56
  6. Step 6: Final answer
    x = 42,018.83

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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.