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Finding the Fourth Proportional to 66,911.30, 100,367.13 and 22,569.17

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Solution

The fourth proportional to 66,911.30, 100,367.13 and 22,569.17 is: 33,853.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,911.30 : 100,367.13 = 22,569.17 : x
  2. Step 2: Convert to fraction form
    66,911.30/100,367.13 = 22,569.17/x
  3. Step 3: Cross multiply
    66,911.30x = 100,367.13 × 22,569.17
  4. Step 4: Simplify right side
    66,911.30x = 2,265,202,819.38
  5. Step 5: Solve for x
    x = 2,265,202,819.38/66,911.30
  6. Step 6: Final answer
    x = 33,853.82

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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.