Home / 54,311.20-81,446.82-18,763.41

Finding the Fourth Proportional to 54,311.20, 81,446.82 and 18,763.41

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Solution

The fourth proportional to 54,311.20, 81,446.82 and 18,763.41 is: 28,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,311.20 : 81,446.82 = 18,763.41 : x
  2. Step 2: Convert to fraction form
    54,311.20/81,446.82 = 18,763.41/x
  3. Step 3: Cross multiply
    54,311.20x = 81,446.82 × 18,763.41
  4. Step 4: Simplify right side
    54,311.20x = 1,528,220,076.86
  5. Step 5: Solve for x
    x = 1,528,220,076.86/54,311.20
  6. Step 6: Final answer
    x = 28,138.21

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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.