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Finding the Fourth Proportional to 61,306.96, 91,957.89 and 21,335.10

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Solution

The fourth proportional to 61,306.96, 91,957.89 and 21,335.10 is: 32,001.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,306.96 : 91,957.89 = 21,335.10 : x
  2. Step 2: Convert to fraction form
    61,306.96/91,957.89 = 21,335.10/x
  3. Step 3: Cross multiply
    61,306.96x = 91,957.89 × 21,335.10
  4. Step 4: Simplify right side
    61,306.96x = 1,961,930,778.94
  5. Step 5: Solve for x
    x = 1,961,930,778.94/61,306.96
  6. Step 6: Final answer
    x = 32,001.76

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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.