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Finding the Fourth Proportional to 61,350, 92,046.60 and 30,207.12

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Solution

The fourth proportional to 61,350, 92,046.60 and 30,207.12 is: 45,321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,350 : 92,046.60 = 30,207.12 : x
  2. Step 2: Convert to fraction form
    61,350/92,046.60 = 30,207.12/x
  3. Step 3: Cross multiply
    61,350x = 92,046.60 × 30,207.12
  4. Step 4: Simplify right side
    61,350x = 2,780,462,691.79
  5. Step 5: Solve for x
    x = 2,780,462,691.79/61,350
  6. Step 6: Final answer
    x = 45,321.32

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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.