Home / 83,112.23-124,679.10-38,122.73

Finding the Fourth Proportional to 83,112.23, 124,679.10 and 38,122.73

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Solution

The fourth proportional to 83,112.23, 124,679.10 and 38,122.73 is: 57,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,112.23 : 124,679.10 = 38,122.73 : x
  2. Step 2: Convert to fraction form
    83,112.23/124,679.10 = 38,122.73/x
  3. Step 3: Cross multiply
    83,112.23x = 124,679.10 × 38,122.73
  4. Step 4: Simplify right side
    83,112.23x = 4,753,108,120.60
  5. Step 5: Solve for x
    x = 4,753,108,120.60/83,112.23
  6. Step 6: Final answer
    x = 57,189.04

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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.