Home / 80,546.24-120,717-45,505.52

Finding the Fourth Proportional to 80,546.24, 120,717 and 45,505.52

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Solution

The fourth proportional to 80,546.24, 120,717 and 45,505.52 is: 68,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,546.24 : 120,717 = 45,505.52 : x
  2. Step 2: Convert to fraction form
    80,546.24/120,717 = 45,505.52/x
  3. Step 3: Cross multiply
    80,546.24x = 120,717 × 45,505.52
  4. Step 4: Simplify right side
    80,546.24x = 5,493,289,857.84
  5. Step 5: Solve for x
    x = 5,493,289,857.84/80,546.24
  6. Step 6: Final answer
    x = 68,200.45

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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.