Home / 87,976.44-131,964.66-21,416.58

Finding the Fourth Proportional to 87,976.44, 131,964.66 and 21,416.58

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Solution

The fourth proportional to 87,976.44, 131,964.66 and 21,416.58 is: 32,124.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,976.44 : 131,964.66 = 21,416.58 : x
  2. Step 2: Convert to fraction form
    87,976.44/131,964.66 = 21,416.58/x
  3. Step 3: Cross multiply
    87,976.44x = 131,964.66 × 21,416.58
  4. Step 4: Simplify right side
    87,976.44x = 2,826,231,698.06
  5. Step 5: Solve for x
    x = 2,826,231,698.06/87,976.44
  6. Step 6: Final answer
    x = 32,124.87

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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.