Home / 81,427.92-122,142-22,264.11

Finding the Fourth Proportional to 81,427.92, 122,142 and 22,264.11

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Solution

The fourth proportional to 81,427.92, 122,142 and 22,264.11 is: 33,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,427.92 : 122,142 = 22,264.11 : x
  2. Step 2: Convert to fraction form
    81,427.92/122,142 = 22,264.11/x
  3. Step 3: Cross multiply
    81,427.92x = 122,142 × 22,264.11
  4. Step 4: Simplify right side
    81,427.92x = 2,719,382,923.62
  5. Step 5: Solve for x
    x = 2,719,382,923.62/81,427.92
  6. Step 6: Final answer
    x = 33,396.20

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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.