Home / 54,207.40-81,311.10-19,150.60

Finding the Fourth Proportional to 54,207.40, 81,311.10 and 19,150.60

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Solution

The fourth proportional to 54,207.40, 81,311.10 and 19,150.60 is: 28,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,207.40 : 81,311.10 = 19,150.60 : x
  2. Step 2: Convert to fraction form
    54,207.40/81,311.10 = 19,150.60/x
  3. Step 3: Cross multiply
    54,207.40x = 81,311.10 × 19,150.60
  4. Step 4: Simplify right side
    54,207.40x = 1,557,156,351.66
  5. Step 5: Solve for x
    x = 1,557,156,351.66/54,207.40
  6. Step 6: Final answer
    x = 28,725.90

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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.