Home / 54,789.28-75,609.40-29,638.78

Finding the Fourth Proportional to 54,789.28, 75,609.40 and 29,638.78

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Solution

The fourth proportional to 54,789.28, 75,609.40 and 29,638.78 is: 40,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,789.28 : 75,609.40 = 29,638.78 : x
  2. Step 2: Convert to fraction form
    54,789.28/75,609.40 = 29,638.78/x
  3. Step 3: Cross multiply
    54,789.28x = 75,609.40 × 29,638.78
  4. Step 4: Simplify right side
    54,789.28x = 2,240,970,372.53
  5. Step 5: Solve for x
    x = 2,240,970,372.53/54,789.28
  6. Step 6: Final answer
    x = 40,901.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.