Home / 90,489.52-124,869.90-54,658.36

Finding the Fourth Proportional to 90,489.52, 124,869.90 and 54,658.36

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Solution

The fourth proportional to 90,489.52, 124,869.90 and 54,658.36 is: 75,425.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,489.52 : 124,869.90 = 54,658.36 : x
  2. Step 2: Convert to fraction form
    90,489.52/124,869.90 = 54,658.36/x
  3. Step 3: Cross multiply
    90,489.52x = 124,869.90 × 54,658.36
  4. Step 4: Simplify right side
    90,489.52x = 6,825,183,947.36
  5. Step 5: Solve for x
    x = 6,825,183,947.36/90,489.52
  6. Step 6: Final answer
    x = 75,425.13

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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.