Home / 80,035.32-120,072.78-33,262.68

Finding the Fourth Proportional to 80,035.32, 120,072.78 and 33,262.68

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Solution

The fourth proportional to 80,035.32, 120,072.78 and 33,262.68 is: 49,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,035.32 : 120,072.78 = 33,262.68 : x
  2. Step 2: Convert to fraction form
    80,035.32/120,072.78 = 33,262.68/x
  3. Step 3: Cross multiply
    80,035.32x = 120,072.78 × 33,262.68
  4. Step 4: Simplify right side
    80,035.32x = 3,993,942,457.85
  5. Step 5: Solve for x
    x = 3,993,942,457.85/80,035.32
  6. Step 6: Final answer
    x = 49,902.25

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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.