Home / 81,717.62-122,583.49-22,553.29

Finding the Fourth Proportional to 81,717.62, 122,583.49 and 22,553.29

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Solution

The fourth proportional to 81,717.62, 122,583.49 and 22,553.29 is: 33,831.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,717.62 : 122,583.49 = 22,553.29 : x
  2. Step 2: Convert to fraction form
    81,717.62/122,583.49 = 22,553.29/x
  3. Step 3: Cross multiply
    81,717.62x = 122,583.49 × 22,553.29
  4. Step 4: Simplify right side
    81,717.62x = 2,764,660,636.34
  5. Step 5: Solve for x
    x = 2,764,660,636.34/81,717.62
  6. Step 6: Final answer
    x = 33,831.88

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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.