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Finding the Fourth Proportional to 66,801.43, 100,207.01 and 22,427.81

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Solution

The fourth proportional to 66,801.43, 100,207.01 and 22,427.81 is: 33,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,801.43 : 100,207.01 = 22,427.81 : x
  2. Step 2: Convert to fraction form
    66,801.43/100,207.01 = 22,427.81/x
  3. Step 3: Cross multiply
    66,801.43x = 100,207.01 × 22,427.81
  4. Step 4: Simplify right side
    66,801.43x = 2,247,423,780.95
  5. Step 5: Solve for x
    x = 2,247,423,780.95/66,801.43
  6. Step 6: Final answer
    x = 33,643.35

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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.