Home / 81,352.38-122,016.03-22,192.86

Finding the Fourth Proportional to 81,352.38, 122,016.03 and 22,192.86

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Solution

The fourth proportional to 81,352.38, 122,016.03 and 22,192.86 is: 33,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,352.38 : 122,016.03 = 22,192.86 : x
  2. Step 2: Convert to fraction form
    81,352.38/122,016.03 = 22,192.86/x
  3. Step 3: Cross multiply
    81,352.38x = 122,016.03 × 22,192.86
  4. Step 4: Simplify right side
    81,352.38x = 2,707,884,671.55
  5. Step 5: Solve for x
    x = 2,707,884,671.55/81,352.38
  6. Step 6: Final answer
    x = 33,285.87

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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.