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Finding the Fourth Proportional to 66,034.60, 98,906.10 and 54,370.60

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Solution

The fourth proportional to 66,034.60, 98,906.10 and 54,370.60 is: 81,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,034.60 : 98,906.10 = 54,370.60 : x
  2. Step 2: Convert to fraction form
    66,034.60/98,906.10 = 54,370.60/x
  3. Step 3: Cross multiply
    66,034.60x = 98,906.10 × 54,370.60
  4. Step 4: Simplify right side
    66,034.60x = 5,377,584,000.66
  5. Step 5: Solve for x
    x = 5,377,584,000.66/66,034.60
  6. Step 6: Final answer
    x = 81,435.85

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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.