Home / 54,534.20-81,974.10-51,423.80

Finding the Fourth Proportional to 54,534.20, 81,974.10 and 51,423.80

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Solution

The fourth proportional to 54,534.20, 81,974.10 and 51,423.80 is: 77,298.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,534.20 : 81,974.10 = 51,423.80 : x
  2. Step 2: Convert to fraction form
    54,534.20/81,974.10 = 51,423.80/x
  3. Step 3: Cross multiply
    54,534.20x = 81,974.10 × 51,423.80
  4. Step 4: Simplify right side
    54,534.20x = 4,215,419,723.58
  5. Step 5: Solve for x
    x = 4,215,419,723.58/54,534.20
  6. Step 6: Final answer
    x = 77,298.64

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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.