Home / 54,787.20-82,180.68-13,234.20

Finding the Fourth Proportional to 54,787.20, 82,180.68 and 13,234.20

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Solution

The fourth proportional to 54,787.20, 82,180.68 and 13,234.20 is: 19,851.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,787.20 : 82,180.68 = 13,234.20 : x
  2. Step 2: Convert to fraction form
    54,787.20/82,180.68 = 13,234.20/x
  3. Step 3: Cross multiply
    54,787.20x = 82,180.68 × 13,234.20
  4. Step 4: Simplify right side
    54,787.20x = 1,087,595,555.26
  5. Step 5: Solve for x
    x = 1,087,595,555.26/54,787.20
  6. Step 6: Final answer
    x = 19,851.27

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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.