Home / 82,747.91-124,123.08-20,418.41

Finding the Fourth Proportional to 82,747.91, 124,123.08 and 20,418.41

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Solution

The fourth proportional to 82,747.91, 124,123.08 and 20,418.41 is: 30,627.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,747.91 : 124,123.08 = 20,418.41 : x
  2. Step 2: Convert to fraction form
    82,747.91/124,123.08 = 20,418.41/x
  3. Step 3: Cross multiply
    82,747.91x = 124,123.08 × 20,418.41
  4. Step 4: Simplify right side
    82,747.91x = 2,534,396,324.78
  5. Step 5: Solve for x
    x = 2,534,396,324.78/82,747.91
  6. Step 6: Final answer
    x = 30,627.92

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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.