Home / 87,893.30-131,826.45-28,729.28

Finding the Fourth Proportional to 87,893.30, 131,826.45 and 28,729.28

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Solution

The fourth proportional to 87,893.30, 131,826.45 and 28,729.28 is: 43,089.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,893.30 : 131,826.45 = 28,729.28 : x
  2. Step 2: Convert to fraction form
    87,893.30/131,826.45 = 28,729.28/x
  3. Step 3: Cross multiply
    87,893.30x = 131,826.45 × 28,729.28
  4. Step 4: Simplify right side
    87,893.30x = 3,787,278,993.46
  5. Step 5: Solve for x
    x = 3,787,278,993.46/87,893.30
  6. Step 6: Final answer
    x = 43,089.51

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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.