Home / 87,439.94-120,662.84-49,713.38

Finding the Fourth Proportional to 87,439.94, 120,662.84 and 49,713.38

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Solution

The fourth proportional to 87,439.94, 120,662.84 and 49,713.38 is: 68,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,439.94 : 120,662.84 = 49,713.38 : x
  2. Step 2: Convert to fraction form
    87,439.94/120,662.84 = 49,713.38/x
  3. Step 3: Cross multiply
    87,439.94x = 120,662.84 × 49,713.38
  4. Step 4: Simplify right side
    87,439.94x = 5,998,557,616.80
  5. Step 5: Solve for x
    x = 5,998,557,616.80/87,439.94
  6. Step 6: Final answer
    x = 68,602.03

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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.