Home / 87,437.94-120,660.09-49,711.38

Finding the Fourth Proportional to 87,437.94, 120,660.09 and 49,711.38

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Solution

The fourth proportional to 87,437.94, 120,660.09 and 49,711.38 is: 68,599.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,437.94 : 120,660.09 = 49,711.38 : x
  2. Step 2: Convert to fraction form
    87,437.94/120,660.09 = 49,711.38/x
  3. Step 3: Cross multiply
    87,437.94x = 120,660.09 × 49,711.38
  4. Step 4: Simplify right side
    87,437.94x = 5,998,179,584.82
  5. Step 5: Solve for x
    x = 5,998,179,584.82/87,437.94
  6. Step 6: Final answer
    x = 68,599.28

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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.