Home / 80,230.72-110,651.13-51,555.04

Finding the Fourth Proportional to 80,230.72, 110,651.13 and 51,555.04

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Solution

The fourth proportional to 80,230.72, 110,651.13 and 51,555.04 is: 71,102.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,230.72 : 110,651.13 = 51,555.04 : x
  2. Step 2: Convert to fraction form
    80,230.72/110,651.13 = 51,555.04/x
  3. Step 3: Cross multiply
    80,230.72x = 110,651.13 × 51,555.04
  4. Step 4: Simplify right side
    80,230.72x = 5,704,623,433.20
  5. Step 5: Solve for x
    x = 5,704,623,433.20/80,230.72
  6. Step 6: Final answer
    x = 71,102.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.