Home / 90,211.62-135,334.05-30,234.24

Finding the Fourth Proportional to 90,211.62, 135,334.05 and 30,234.24

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Solution

The fourth proportional to 90,211.62, 135,334.05 and 30,234.24 is: 45,356.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,211.62 : 135,334.05 = 30,234.24 : x
  2. Step 2: Convert to fraction form
    90,211.62/135,334.05 = 30,234.24/x
  3. Step 3: Cross multiply
    90,211.62x = 135,334.05 × 30,234.24
  4. Step 4: Simplify right side
    90,211.62x = 4,091,722,147.87
  5. Step 5: Solve for x
    x = 4,091,722,147.87/90,211.62
  6. Step 6: Final answer
    x = 45,356.93

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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.