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Finding the Fourth Proportional to 71,591.10, 98,800.20 and 41,381.88

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Solution

The fourth proportional to 71,591.10, 98,800.20 and 41,381.88 is: 57,109.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,591.10 : 98,800.20 = 41,381.88 : x
  2. Step 2: Convert to fraction form
    71,591.10/98,800.20 = 41,381.88/x
  3. Step 3: Cross multiply
    71,591.10x = 98,800.20 × 41,381.88
  4. Step 4: Simplify right side
    71,591.10x = 4,088,538,020.38
  5. Step 5: Solve for x
    x = 4,088,538,020.38/71,591.10
  6. Step 6: Final answer
    x = 57,109.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.