Home / 80,455.16-120,653.94-27,850.52

Finding the Fourth Proportional to 80,455.16, 120,653.94 and 27,850.52

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Solution

The fourth proportional to 80,455.16, 120,653.94 and 27,850.52 is: 41,765.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,455.16 : 120,653.94 = 27,850.52 : x
  2. Step 2: Convert to fraction form
    80,455.16/120,653.94 = 27,850.52/x
  3. Step 3: Cross multiply
    80,455.16x = 120,653.94 × 27,850.52
  4. Step 4: Simplify right side
    80,455.16x = 3,360,274,969.05
  5. Step 5: Solve for x
    x = 3,360,274,969.05/80,455.16
  6. Step 6: Final answer
    x = 41,765.81

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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.