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Finding the Fourth Proportional to 74,383.73, 111,575.57 and 21,793.19

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Solution

The fourth proportional to 74,383.73, 111,575.57 and 21,793.19 is: 32,689.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,383.73 : 111,575.57 = 21,793.19 : x
  2. Step 2: Convert to fraction form
    74,383.73/111,575.57 = 21,793.19/x
  3. Step 3: Cross multiply
    74,383.73x = 111,575.57 × 21,793.19
  4. Step 4: Simplify right side
    74,383.73x = 2,431,587,766.34
  5. Step 5: Solve for x
    x = 2,431,587,766.34/74,383.73
  6. Step 6: Final answer
    x = 32,689.78

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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.