Home / 87,441.30-120,665.43-51,642.90

Finding the Fourth Proportional to 87,441.30, 120,665.43 and 51,642.90

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Solution

The fourth proportional to 87,441.30, 120,665.43 and 51,642.90 is: 71,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,441.30 : 120,665.43 = 51,642.90 : x
  2. Step 2: Convert to fraction form
    87,441.30/120,665.43 = 51,642.90/x
  3. Step 3: Cross multiply
    87,441.30x = 120,665.43 × 51,642.90
  4. Step 4: Simplify right side
    87,441.30x = 6,231,512,734.95
  5. Step 5: Solve for x
    x = 6,231,512,734.95/87,441.30
  6. Step 6: Final answer
    x = 71,265.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.