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Finding the Fourth Proportional to 61,105.60, 91,645.60 and 29,963.20

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Solution

The fourth proportional to 61,105.60, 91,645.60 and 29,963.20 is: 44,938.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,105.60 : 91,645.60 = 29,963.20 : x
  2. Step 2: Convert to fraction form
    61,105.60/91,645.60 = 29,963.20/x
  3. Step 3: Cross multiply
    61,105.60x = 91,645.60 × 29,963.20
  4. Step 4: Simplify right side
    61,105.60x = 2,745,995,441.92
  5. Step 5: Solve for x
    x = 2,745,995,441.92/61,105.60
  6. Step 6: Final answer
    x = 44,938.52

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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.