Home / 87,976.51-131,951.39-28,810.87

Finding the Fourth Proportional to 87,976.51, 131,951.39 and 28,810.87

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Solution

The fourth proportional to 87,976.51, 131,951.39 and 28,810.87 is: 43,211.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,976.51 : 131,951.39 = 28,810.87 : x
  2. Step 2: Convert to fraction form
    87,976.51/131,951.39 = 28,810.87/x
  3. Step 3: Cross multiply
    87,976.51x = 131,951.39 × 28,810.87
  4. Step 4: Simplify right side
    87,976.51x = 3,801,633,683.85
  5. Step 5: Solve for x
    x = 3,801,633,683.85/87,976.51
  6. Step 6: Final answer
    x = 43,211.92

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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.