Home / 80,529.40-111,131.66-44,721.72

Finding the Fourth Proportional to 80,529.40, 111,131.66 and 44,721.72

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Solution

The fourth proportional to 80,529.40, 111,131.66 and 44,721.72 is: 61,716.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,529.40 : 111,131.66 = 44,721.72 : x
  2. Step 2: Convert to fraction form
    80,529.40/111,131.66 = 44,721.72/x
  3. Step 3: Cross multiply
    80,529.40x = 111,131.66 × 44,721.72
  4. Step 4: Simplify right side
    80,529.40x = 4,969,998,981.66
  5. Step 5: Solve for x
    x = 4,969,998,981.66/80,529.40
  6. Step 6: Final answer
    x = 61,716.58

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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.