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Finding the Fourth Proportional to 71,481.60, 107,222.40 and 49,363.20

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Solution

The fourth proportional to 71,481.60, 107,222.40 and 49,363.20 is: 74,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,481.60 : 107,222.40 = 49,363.20 : x
  2. Step 2: Convert to fraction form
    71,481.60/107,222.40 = 49,363.20/x
  3. Step 3: Cross multiply
    71,481.60x = 107,222.40 × 49,363.20
  4. Step 4: Simplify right side
    71,481.60x = 5,292,840,775.68
  5. Step 5: Solve for x
    x = 5,292,840,775.68/71,481.60
  6. Step 6: Final answer
    x = 74,044.80

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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.