Home / 54,261.72-81,517.34-38,288.03

Finding the Fourth Proportional to 54,261.72, 81,517.34 and 38,288.03

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Solution

The fourth proportional to 54,261.72, 81,517.34 and 38,288.03 is: 57,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,261.72 : 81,517.34 = 38,288.03 : x
  2. Step 2: Convert to fraction form
    54,261.72/81,517.34 = 38,288.03/x
  3. Step 3: Cross multiply
    54,261.72x = 81,517.34 × 38,288.03
  4. Step 4: Simplify right side
    54,261.72x = 3,121,138,359.44
  5. Step 5: Solve for x
    x = 3,121,138,359.44/54,261.72
  6. Step 6: Final answer
    x = 57,520.08

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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.