Home / 54,808.11-82,180.65-21,489.15

Finding the Fourth Proportional to 54,808.11, 82,180.65 and 21,489.15

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Solution

The fourth proportional to 54,808.11, 82,180.65 and 21,489.15 is: 32,221.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,808.11 : 82,180.65 = 21,489.15 : x
  2. Step 2: Convert to fraction form
    54,808.11/82,180.65 = 21,489.15/x
  3. Step 3: Cross multiply
    54,808.11x = 82,180.65 × 21,489.15
  4. Step 4: Simplify right side
    54,808.11x = 1,765,992,314.95
  5. Step 5: Solve for x
    x = 1,765,992,314.95/54,808.11
  6. Step 6: Final answer
    x = 32,221.37

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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.