Home / 36,122.20-54,183.30-30,290.20

Finding the Fourth Proportional to 36,122.20, 54,183.30 and 30,290.20

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Solution

The fourth proportional to 36,122.20, 54,183.30 and 30,290.20 is: 45,435.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,122.20 : 54,183.30 = 30,290.20 : x
  2. Step 2: Convert to fraction form
    36,122.20/54,183.30 = 30,290.20/x
  3. Step 3: Cross multiply
    36,122.20x = 54,183.30 × 30,290.20
  4. Step 4: Simplify right side
    36,122.20x = 1,641,222,993.66
  5. Step 5: Solve for x
    x = 1,641,222,993.66/36,122.20
  6. Step 6: Final answer
    x = 45,435.30

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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.