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Finding the Fourth Proportional to 54,163.80, 81,245.70 and 36,449.10

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Solution

The fourth proportional to 54,163.80, 81,245.70 and 36,449.10 is: 54,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,163.80 : 81,245.70 = 36,449.10 : x
  2. Step 2: Convert to fraction form
    54,163.80/81,245.70 = 36,449.10/x
  3. Step 3: Cross multiply
    54,163.80x = 81,245.70 × 36,449.10
  4. Step 4: Simplify right side
    54,163.80x = 2,961,332,643.87
  5. Step 5: Solve for x
    x = 2,961,332,643.87/54,163.80
  6. Step 6: Final answer
    x = 54,673.65

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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.