Home / 87,930.84-131,912.46-28,769.82

Finding the Fourth Proportional to 87,930.84, 131,912.46 and 28,769.82

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Solution

The fourth proportional to 87,930.84, 131,912.46 and 28,769.82 is: 43,160.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,930.84 : 131,912.46 = 28,769.82 : x
  2. Step 2: Convert to fraction form
    87,930.84/131,912.46 = 28,769.82/x
  3. Step 3: Cross multiply
    87,930.84x = 131,912.46 × 28,769.82
  4. Step 4: Simplify right side
    87,930.84x = 3,795,097,729.96
  5. Step 5: Solve for x
    x = 3,795,097,729.96/87,930.84
  6. Step 6: Final answer
    x = 43,160.03

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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.