Home / 54,083.04-81,087.64-18,534.72

Finding the Fourth Proportional to 54,083.04, 81,087.64 and 18,534.72

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Solution

The fourth proportional to 54,083.04, 81,087.64 and 18,534.72 is: 27,789.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,083.04 : 81,087.64 = 18,534.72 : x
  2. Step 2: Convert to fraction form
    54,083.04/81,087.64 = 18,534.72/x
  3. Step 3: Cross multiply
    54,083.04x = 81,087.64 × 18,534.72
  4. Step 4: Simplify right side
    54,083.04x = 1,502,936,702.86
  5. Step 5: Solve for x
    x = 1,502,936,702.86/54,083.04
  6. Step 6: Final answer
    x = 27,789.43

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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.