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Finding the Fourth Proportional to 73,101.60, 109,479.60 and 49,600.80

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Solution

The fourth proportional to 73,101.60, 109,479.60 and 49,600.80 is: 74,283.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,101.60 : 109,479.60 = 49,600.80 : x
  2. Step 2: Convert to fraction form
    73,101.60/109,479.60 = 49,600.80/x
  3. Step 3: Cross multiply
    73,101.60x = 109,479.60 × 49,600.80
  4. Step 4: Simplify right side
    73,101.60x = 5,430,275,743.68
  5. Step 5: Solve for x
    x = 5,430,275,743.68/73,101.60
  6. Step 6: Final answer
    x = 74,283.95

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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.