Home / 54,156.11-81,248.00-20,867.25

Finding the Fourth Proportional to 54,156.11, 81,248.00 and 20,867.25

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Solution

The fourth proportional to 54,156.11, 81,248.00 and 20,867.25 is: 31,306.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,156.11 : 81,248.00 = 20,867.25 : x
  2. Step 2: Convert to fraction form
    54,156.11/81,248.00 = 20,867.25/x
  3. Step 3: Cross multiply
    54,156.11x = 81,248.00 × 20,867.25
  4. Step 4: Simplify right side
    54,156.11x = 1,695,422,223.66
  5. Step 5: Solve for x
    x = 1,695,422,223.66/54,156.11
  6. Step 6: Final answer
    x = 31,306.21

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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.