Home / 80,524.87-120,821.42-43,075.13

Finding the Fourth Proportional to 80,524.87, 120,821.42 and 43,075.13

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Solution

The fourth proportional to 80,524.87, 120,821.42 and 43,075.13 is: 64,630.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,524.87 : 120,821.42 = 43,075.13 : x
  2. Step 2: Convert to fraction form
    80,524.87/120,821.42 = 43,075.13/x
  3. Step 3: Cross multiply
    80,524.87x = 120,821.42 × 43,075.13
  4. Step 4: Simplify right side
    80,524.87x = 5,204,397,876.87
  5. Step 5: Solve for x
    x = 5,204,397,876.87/80,524.87
  6. Step 6: Final answer
    x = 64,630.94

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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.