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Finding the Fourth Proportional to 71,404.39, 107,001.33 and 39,770.89

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Solution

The fourth proportional to 71,404.39, 107,001.33 and 39,770.89 is: 59,597.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,404.39 : 107,001.33 = 39,770.89 : x
  2. Step 2: Convert to fraction form
    71,404.39/107,001.33 = 39,770.89/x
  3. Step 3: Cross multiply
    71,404.39x = 107,001.33 × 39,770.89
  4. Step 4: Simplify right side
    71,404.39x = 4,255,538,125.28
  5. Step 5: Solve for x
    x = 4,255,538,125.28/71,404.39
  6. Step 6: Final answer
    x = 59,597.71

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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.