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Finding the Fourth Proportional to 66,522.78, 99,785.25 and 22,148.82

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Solution

The fourth proportional to 66,522.78, 99,785.25 and 22,148.82 is: 33,223.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,522.78 : 99,785.25 = 22,148.82 : x
  2. Step 2: Convert to fraction form
    66,522.78/99,785.25 = 22,148.82/x
  3. Step 3: Cross multiply
    66,522.78x = 99,785.25 × 22,148.82
  4. Step 4: Simplify right side
    66,522.78x = 2,210,125,540.91
  5. Step 5: Solve for x
    x = 2,210,125,540.91/66,522.78
  6. Step 6: Final answer
    x = 33,223.59

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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.