Home / 54,451.38-81,600.45-43,308.61

Finding the Fourth Proportional to 54,451.38, 81,600.45 and 43,308.61

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Solution

The fourth proportional to 54,451.38, 81,600.45 and 43,308.61 is: 64,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,451.38 : 81,600.45 = 43,308.61 : x
  2. Step 2: Convert to fraction form
    54,451.38/81,600.45 = 43,308.61/x
  3. Step 3: Cross multiply
    54,451.38x = 81,600.45 × 43,308.61
  4. Step 4: Simplify right side
    54,451.38x = 3,534,002,064.87
  5. Step 5: Solve for x
    x = 3,534,002,064.87/54,451.38
  6. Step 6: Final answer
    x = 64,901.97

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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.