Home / 90,385.83-124,732.26-54,568.80

Finding the Fourth Proportional to 90,385.83, 124,732.26 and 54,568.80

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Solution

The fourth proportional to 90,385.83, 124,732.26 and 54,568.80 is: 75,304.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,385.83 : 124,732.26 = 54,568.80 : x
  2. Step 2: Convert to fraction form
    90,385.83/124,732.26 = 54,568.80/x
  3. Step 3: Cross multiply
    90,385.83x = 124,732.26 × 54,568.80
  4. Step 4: Simplify right side
    90,385.83x = 6,806,489,749.49
  5. Step 5: Solve for x
    x = 6,806,489,749.49/90,385.83
  6. Step 6: Final answer
    x = 75,304.83

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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.