Home / 48,191.23-72,247.89-20,132.78

Finding the Fourth Proportional to 48,191.23, 72,247.89 and 20,132.78

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Solution

The fourth proportional to 48,191.23, 72,247.89 and 20,132.78 is: 30,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,191.23 : 72,247.89 = 20,132.78 : x
  2. Step 2: Convert to fraction form
    48,191.23/72,247.89 = 20,132.78/x
  3. Step 3: Cross multiply
    48,191.23x = 72,247.89 × 20,132.78
  4. Step 4: Simplify right side
    48,191.23x = 1,454,550,874.83
  5. Step 5: Solve for x
    x = 1,454,550,874.83/48,191.23
  6. Step 6: Final answer
    x = 30,182.90

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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.