Home / 54,306.92-81,440.34-18,759.14

Finding the Fourth Proportional to 54,306.92, 81,440.34 and 18,759.14

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Solution

The fourth proportional to 54,306.92, 81,440.34 and 18,759.14 is: 28,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,306.92 : 81,440.34 = 18,759.14 : x
  2. Step 2: Convert to fraction form
    54,306.92/81,440.34 = 18,759.14/x
  3. Step 3: Cross multiply
    54,306.92x = 81,440.34 × 18,759.14
  4. Step 4: Simplify right side
    54,306.92x = 1,527,750,739.71
  5. Step 5: Solve for x
    x = 1,527,750,739.71/54,306.92
  6. Step 6: Final answer
    x = 28,131.79

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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.