Home / 81,917.90-122,876.15-22,753.48

Finding the Fourth Proportional to 81,917.90, 122,876.15 and 22,753.48

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Solution

The fourth proportional to 81,917.90, 122,876.15 and 22,753.48 is: 34,130.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,917.90 : 122,876.15 = 22,753.48 : x
  2. Step 2: Convert to fraction form
    81,917.90/122,876.15 = 22,753.48/x
  3. Step 3: Cross multiply
    81,917.90x = 122,876.15 × 22,753.48
  4. Step 4: Simplify right side
    81,917.90x = 2,795,859,600.54
  5. Step 5: Solve for x
    x = 2,795,859,600.54/81,917.90
  6. Step 6: Final answer
    x = 34,130.02

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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.