Home / 87,865.70-131,819.40-28,701.27

Finding the Fourth Proportional to 87,865.70, 131,819.40 and 28,701.27

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Solution

The fourth proportional to 87,865.70, 131,819.40 and 28,701.27 is: 43,058.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,865.70 : 131,819.40 = 28,701.27 : x
  2. Step 2: Convert to fraction form
    87,865.70/131,819.40 = 28,701.27/x
  3. Step 3: Cross multiply
    87,865.70x = 131,819.40 × 28,701.27
  4. Step 4: Simplify right side
    87,865.70x = 3,783,384,190.64
  5. Step 5: Solve for x
    x = 3,783,384,190.64/87,865.70
  6. Step 6: Final answer
    x = 43,058.72

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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.