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Finding the Fourth Proportional to 74,517.68, 111,794.28 and 21,928.88

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Solution

The fourth proportional to 74,517.68, 111,794.28 and 21,928.88 is: 32,898.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,517.68 : 111,794.28 = 21,928.88 : x
  2. Step 2: Convert to fraction form
    74,517.68/111,794.28 = 21,928.88/x
  3. Step 3: Cross multiply
    74,517.68x = 111,794.28 × 21,928.88
  4. Step 4: Simplify right side
    74,517.68x = 2,451,523,350.81
  5. Step 5: Solve for x
    x = 2,451,523,350.81/74,517.68
  6. Step 6: Final answer
    x = 32,898.55

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1.5x scale

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.