Home / 87,634.10-131,398.60-40,189.76

Finding the Fourth Proportional to 87,634.10, 131,398.60 and 40,189.76

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Solution

The fourth proportional to 87,634.10, 131,398.60 and 40,189.76 is: 60,260.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,634.10 : 131,398.60 = 40,189.76 : x
  2. Step 2: Convert to fraction form
    87,634.10/131,398.60 = 40,189.76/x
  3. Step 3: Cross multiply
    87,634.10x = 131,398.60 × 40,189.76
  4. Step 4: Simplify right side
    87,634.10x = 5,280,878,198.34
  5. Step 5: Solve for x
    x = 5,280,878,198.34/87,634.10
  6. Step 6: Final answer
    x = 60,260.54

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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.