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Finding the Fourth Proportional to 63,952.56, 88,310.25 and 40,120.20

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Solution

The fourth proportional to 63,952.56, 88,310.25 and 40,120.20 is: 55,400.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,952.56 : 88,310.25 = 40,120.20 : x
  2. Step 2: Convert to fraction form
    63,952.56/88,310.25 = 40,120.20/x
  3. Step 3: Cross multiply
    63,952.56x = 88,310.25 × 40,120.20
  4. Step 4: Simplify right side
    63,952.56x = 3,543,024,892.05
  5. Step 5: Solve for x
    x = 3,543,024,892.05/63,952.56
  6. Step 6: Final answer
    x = 55,400.83

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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.