Home / 80,488.24-120,716.40-40,496.56

Finding the Fourth Proportional to 80,488.24, 120,716.40 and 40,496.56

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Solution

The fourth proportional to 80,488.24, 120,716.40 and 40,496.56 is: 60,736.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,488.24 : 120,716.40 = 40,496.56 : x
  2. Step 2: Convert to fraction form
    80,488.24/120,716.40 = 40,496.56/x
  3. Step 3: Cross multiply
    80,488.24x = 120,716.40 × 40,496.56
  4. Step 4: Simplify right side
    80,488.24x = 4,888,598,935.58
  5. Step 5: Solve for x
    x = 4,888,598,935.58/80,488.24
  6. Step 6: Final answer
    x = 60,736.81

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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.