Home / 90,209.52-135,344.33-30,243.92

Finding the Fourth Proportional to 90,209.52, 135,344.33 and 30,243.92

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Solution

The fourth proportional to 90,209.52, 135,344.33 and 30,243.92 is: 45,375.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,209.52 : 135,344.33 = 30,243.92 : x
  2. Step 2: Convert to fraction form
    90,209.52/135,344.33 = 30,243.92/x
  3. Step 3: Cross multiply
    90,209.52x = 135,344.33 × 30,243.92
  4. Step 4: Simplify right side
    90,209.52x = 4,093,343,088.97
  5. Step 5: Solve for x
    x = 4,093,343,088.97/90,209.52
  6. Step 6: Final answer
    x = 45,375.95

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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.