Home / 87,942.86-131,912.45-21,383.34

Finding the Fourth Proportional to 87,942.86, 131,912.45 and 21,383.34

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Solution

The fourth proportional to 87,942.86, 131,912.45 and 21,383.34 is: 32,074.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,942.86 : 131,912.45 = 21,383.34 : x
  2. Step 2: Convert to fraction form
    87,942.86/131,912.45 = 21,383.34/x
  3. Step 3: Cross multiply
    87,942.86x = 131,912.45 × 21,383.34
  4. Step 4: Simplify right side
    87,942.86x = 2,820,728,768.58
  5. Step 5: Solve for x
    x = 2,820,728,768.58/87,942.86
  6. Step 6: Final answer
    x = 32,074.56

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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.