Home / 54,336.85-81,439.66-39,508.99

Finding the Fourth Proportional to 54,336.85, 81,439.66 and 39,508.99

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Solution

The fourth proportional to 54,336.85, 81,439.66 and 39,508.99 is: 59,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,336.85 : 81,439.66 = 39,508.99 : x
  2. Step 2: Convert to fraction form
    54,336.85/81,439.66 = 39,508.99/x
  3. Step 3: Cross multiply
    54,336.85x = 81,439.66 × 39,508.99
  4. Step 4: Simplify right side
    54,336.85x = 3,217,598,712.54
  5. Step 5: Solve for x
    x = 3,217,598,712.54/54,336.85
  6. Step 6: Final answer
    x = 59,215.78

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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.