Home / 54,658.32-81,974.52-15,216.72

Finding the Fourth Proportional to 54,658.32, 81,974.52 and 15,216.72

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Solution

The fourth proportional to 54,658.32, 81,974.52 and 15,216.72 is: 22,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,658.32 : 81,974.52 = 15,216.72 : x
  2. Step 2: Convert to fraction form
    54,658.32/81,974.52 = 15,216.72/x
  3. Step 3: Cross multiply
    54,658.32x = 81,974.52 × 15,216.72
  4. Step 4: Simplify right side
    54,658.32x = 1,247,383,317.97
  5. Step 5: Solve for x
    x = 1,247,383,317.97/54,658.32
  6. Step 6: Final answer
    x = 22,821.47

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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.