Home / 90,834.94-136,272.92-27,660.72

Finding the Fourth Proportional to 90,834.94, 136,272.92 and 27,660.72

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Solution

The fourth proportional to 90,834.94, 136,272.92 and 27,660.72 is: 41,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,834.94 : 136,272.92 = 27,660.72 : x
  2. Step 2: Convert to fraction form
    90,834.94/136,272.92 = 27,660.72/x
  3. Step 3: Cross multiply
    90,834.94x = 136,272.92 × 27,660.72
  4. Step 4: Simplify right side
    90,834.94x = 3,769,407,083.70
  5. Step 5: Solve for x
    x = 3,769,407,083.70/90,834.94
  6. Step 6: Final answer
    x = 41,497.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.