Home / 87,910.12-121,314.30-50,183.56

Finding the Fourth Proportional to 87,910.12, 121,314.30 and 50,183.56

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Solution

The fourth proportional to 87,910.12, 121,314.30 and 50,183.56 is: 69,252.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,910.12 : 121,314.30 = 50,183.56 : x
  2. Step 2: Convert to fraction form
    87,910.12/121,314.30 = 50,183.56/x
  3. Step 3: Cross multiply
    87,910.12x = 121,314.30 × 50,183.56
  4. Step 4: Simplify right side
    87,910.12x = 6,087,983,452.91
  5. Step 5: Solve for x
    x = 6,087,983,452.91/87,910.12
  6. Step 6: Final answer
    x = 69,252.36

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1.5x scale

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.