Home / 87,230.10-120,383.74-49,506.78

Finding the Fourth Proportional to 87,230.10, 120,383.74 and 49,506.78

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Solution

The fourth proportional to 87,230.10, 120,383.74 and 49,506.78 is: 68,322.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,230.10 : 120,383.74 = 49,506.78 : x
  2. Step 2: Convert to fraction form
    87,230.10/120,383.74 = 49,506.78/x
  3. Step 3: Cross multiply
    87,230.10x = 120,383.74 × 49,506.78
  4. Step 4: Simplify right side
    87,230.10x = 5,959,811,331.76
  5. Step 5: Solve for x
    x = 5,959,811,331.76/87,230.10
  6. Step 6: Final answer
    x = 68,322.88

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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.