Home / 80,639.24-120,958.88-43,936.52

Finding the Fourth Proportional to 80,639.24, 120,958.88 and 43,936.52

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Solution

The fourth proportional to 80,639.24, 120,958.88 and 43,936.52 is: 65,904.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,639.24 : 120,958.88 = 43,936.52 : x
  2. Step 2: Convert to fraction form
    80,639.24/120,958.88 = 43,936.52/x
  3. Step 3: Cross multiply
    80,639.24x = 120,958.88 × 43,936.52
  4. Step 4: Simplify right side
    80,639.24x = 5,314,512,250.30
  5. Step 5: Solve for x
    x = 5,314,512,250.30/80,639.24
  6. Step 6: Final answer
    x = 65,904.79

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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.