Home / 90,163.20-135,287.33-40,238.85

Finding the Fourth Proportional to 90,163.20, 135,287.33 and 40,238.85

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Solution

The fourth proportional to 90,163.20, 135,287.33 and 40,238.85 is: 60,377.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,163.20 : 135,287.33 = 40,238.85 : x
  2. Step 2: Convert to fraction form
    90,163.20/135,287.33 = 40,238.85/x
  3. Step 3: Cross multiply
    90,163.20x = 135,287.33 × 40,238.85
  4. Step 4: Simplify right side
    90,163.20x = 5,443,806,578.77
  5. Step 5: Solve for x
    x = 5,443,806,578.77/90,163.20
  6. Step 6: Final answer
    x = 60,377.26

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1.5x scale

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.