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Finding the Fourth Proportional to 71,947.40, 107,921.10 and 22,699.40

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Solution

The fourth proportional to 71,947.40, 107,921.10 and 22,699.40 is: 34,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,947.40 : 107,921.10 = 22,699.40 : x
  2. Step 2: Convert to fraction form
    71,947.40/107,921.10 = 22,699.40/x
  3. Step 3: Cross multiply
    71,947.40x = 107,921.10 × 22,699.40
  4. Step 4: Simplify right side
    71,947.40x = 2,449,744,217.34
  5. Step 5: Solve for x
    x = 2,449,744,217.34/71,947.40
  6. Step 6: Final answer
    x = 34,049.10

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Similar ratio
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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.