Home / 80,525.24-120,828-36,183.68

Finding the Fourth Proportional to 80,525.24, 120,828 and 36,183.68

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Solution

The fourth proportional to 80,525.24, 120,828 and 36,183.68 is: 54,293.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,525.24 : 120,828 = 36,183.68 : x
  2. Step 2: Convert to fraction form
    80,525.24/120,828 = 36,183.68/x
  3. Step 3: Cross multiply
    80,525.24x = 120,828 × 36,183.68
  4. Step 4: Simplify right side
    80,525.24x = 4,372,001,687.04
  5. Step 5: Solve for x
    x = 4,372,001,687.04/80,525.24
  6. Step 6: Final answer
    x = 54,293.56

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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.