Home / 87,617.10-131,512.05-43,293.90

Finding the Fourth Proportional to 87,617.10, 131,512.05 and 43,293.90

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Solution

The fourth proportional to 87,617.10, 131,512.05 and 43,293.90 is: 64,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,617.10 : 131,512.05 = 43,293.90 : x
  2. Step 2: Convert to fraction form
    87,617.10/131,512.05 = 43,293.90/x
  3. Step 3: Cross multiply
    87,617.10x = 131,512.05 × 43,293.90
  4. Step 4: Simplify right side
    87,617.10x = 5,693,669,541.50
  5. Step 5: Solve for x
    x = 5,693,669,541.50/87,617.10
  6. Step 6: Final answer
    x = 64,983.54

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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.