Home / 81,591.48-122,388.58-22,426.78

Finding the Fourth Proportional to 81,591.48, 122,388.58 and 22,426.78

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Solution

The fourth proportional to 81,591.48, 122,388.58 and 22,426.78 is: 33,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,591.48 : 122,388.58 = 22,426.78 : x
  2. Step 2: Convert to fraction form
    81,591.48/122,388.58 = 22,426.78/x
  3. Step 3: Cross multiply
    81,591.48x = 122,388.58 × 22,426.78
  4. Step 4: Simplify right side
    81,591.48x = 2,744,781,758.17
  5. Step 5: Solve for x
    x = 2,744,781,758.17/81,591.48
  6. Step 6: Final answer
    x = 33,640.54

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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.