Home / 54,489.18-81,690.33-50,115.42

Finding the Fourth Proportional to 54,489.18, 81,690.33 and 50,115.42

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Solution

The fourth proportional to 54,489.18, 81,690.33 and 50,115.42 is: 75,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,489.18 : 81,690.33 = 50,115.42 : x
  2. Step 2: Convert to fraction form
    54,489.18/81,690.33 = 50,115.42/x
  3. Step 3: Cross multiply
    54,489.18x = 81,690.33 × 50,115.42
  4. Step 4: Simplify right side
    54,489.18x = 4,093,945,197.89
  5. Step 5: Solve for x
    x = 4,093,945,197.89/54,489.18
  6. Step 6: Final answer
    x = 75,133.18

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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.