Home / 81,046.92-121,570.20-21,882.60

Finding the Fourth Proportional to 81,046.92, 121,570.20 and 21,882.60

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Solution

The fourth proportional to 81,046.92, 121,570.20 and 21,882.60 is: 32,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,046.92 : 121,570.20 = 21,882.60 : x
  2. Step 2: Convert to fraction form
    81,046.92/121,570.20 = 21,882.60/x
  3. Step 3: Cross multiply
    81,046.92x = 121,570.20 × 21,882.60
  4. Step 4: Simplify right side
    81,046.92x = 2,660,272,058.52
  5. Step 5: Solve for x
    x = 2,660,272,058.52/81,046.92
  6. Step 6: Final answer
    x = 32,823.85

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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.