Home / 80,961.35-111,721.39-44,660.61

Finding the Fourth Proportional to 80,961.35, 111,721.39 and 44,660.61

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Solution

The fourth proportional to 80,961.35, 111,721.39 and 44,660.61 is: 61,628.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,961.35 : 111,721.39 = 44,660.61 : x
  2. Step 2: Convert to fraction form
    80,961.35/111,721.39 = 44,660.61/x
  3. Step 3: Cross multiply
    80,961.35x = 111,721.39 × 44,660.61
  4. Step 4: Simplify right side
    80,961.35x = 4,989,545,427.45
  5. Step 5: Solve for x
    x = 4,989,545,427.45/80,961.35
  6. Step 6: Final answer
    x = 61,628.73

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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.