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Finding the Fourth Proportional to 71,847.92, 107,771.88 and 21,928.29

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Solution

The fourth proportional to 71,847.92, 107,771.88 and 21,928.29 is: 32,892.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,847.92 : 107,771.88 = 21,928.29 : x
  2. Step 2: Convert to fraction form
    71,847.92/107,771.88 = 21,928.29/x
  3. Step 3: Cross multiply
    71,847.92x = 107,771.88 × 21,928.29
  4. Step 4: Simplify right side
    71,847.92x = 2,363,252,716.57
  5. Step 5: Solve for x
    x = 2,363,252,716.57/71,847.92
  6. Step 6: Final answer
    x = 32,892.43

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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.