Home / 40,067.92-60,105.12-13,772.68

Finding the Fourth Proportional to 40,067.92, 60,105.12 and 13,772.68

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Solution

The fourth proportional to 40,067.92, 60,105.12 and 13,772.68 is: 20,660.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,067.92 : 60,105.12 = 13,772.68 : x
  2. Step 2: Convert to fraction form
    40,067.92/60,105.12 = 13,772.68/x
  3. Step 3: Cross multiply
    40,067.92x = 60,105.12 × 13,772.68
  4. Step 4: Simplify right side
    40,067.92x = 827,808,584.12
  5. Step 5: Solve for x
    x = 827,808,584.12/40,067.92
  6. Step 6: Final answer
    x = 20,660.13

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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.