Home / 87,912.34-131,884.94-28,751.22

Finding the Fourth Proportional to 87,912.34, 131,884.94 and 28,751.22

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Solution

The fourth proportional to 87,912.34, 131,884.94 and 28,751.22 is: 43,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,912.34 : 131,884.94 = 28,751.22 : x
  2. Step 2: Convert to fraction form
    87,912.34/131,884.94 = 28,751.22/x
  3. Step 3: Cross multiply
    87,912.34x = 131,884.94 × 28,751.22
  4. Step 4: Simplify right side
    87,912.34x = 3,791,852,996.50
  5. Step 5: Solve for x
    x = 3,791,852,996.50/87,912.34
  6. Step 6: Final answer
    x = 43,132.21

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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.