Home / 80,717.04-120,816.72-43,183.20

Finding the Fourth Proportional to 80,717.04, 120,816.72 and 43,183.20

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Solution

The fourth proportional to 80,717.04, 120,816.72 and 43,183.20 is: 64,636.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,717.04 : 120,816.72 = 43,183.20 : x
  2. Step 2: Convert to fraction form
    80,717.04/120,816.72 = 43,183.20/x
  3. Step 3: Cross multiply
    80,717.04x = 120,816.72 × 43,183.20
  4. Step 4: Simplify right side
    80,717.04x = 5,217,252,583.10
  5. Step 5: Solve for x
    x = 5,217,252,583.10/80,717.04
  6. Step 6: Final answer
    x = 64,636.32

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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.