Home / 99,712.91-137,606.41-54,391.66

Finding the Fourth Proportional to 99,712.91, 137,606.41 and 54,391.66

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Solution

The fourth proportional to 99,712.91, 137,606.41 and 54,391.66 is: 75,061.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,712.91 : 137,606.41 = 54,391.66 : x
  2. Step 2: Convert to fraction form
    99,712.91/137,606.41 = 54,391.66/x
  3. Step 3: Cross multiply
    99,712.91x = 137,606.41 × 54,391.66
  4. Step 4: Simplify right side
    99,712.91x = 7,484,641,066.54
  5. Step 5: Solve for x
    x = 7,484,641,066.54/99,712.91
  6. Step 6: Final answer
    x = 75,061.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.