Home / 81,344.38-122,013.02-22,179.90

Finding the Fourth Proportional to 81,344.38, 122,013.02 and 22,179.90

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Solution

The fourth proportional to 81,344.38, 122,013.02 and 22,179.90 is: 33,268.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,344.38 : 122,013.02 = 22,179.90 : x
  2. Step 2: Convert to fraction form
    81,344.38/122,013.02 = 22,179.90/x
  3. Step 3: Cross multiply
    81,344.38x = 122,013.02 × 22,179.90
  4. Step 4: Simplify right side
    81,344.38x = 2,706,236,582.30
  5. Step 5: Solve for x
    x = 2,706,236,582.30/81,344.38
  6. Step 6: Final answer
    x = 33,268.88

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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.