Home / 80,529.12-120,806.64-27,226.26

Finding the Fourth Proportional to 80,529.12, 120,806.64 and 27,226.26

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Solution

The fourth proportional to 80,529.12, 120,806.64 and 27,226.26 is: 40,843.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,529.12 : 120,806.64 = 27,226.26 : x
  2. Step 2: Convert to fraction form
    80,529.12/120,806.64 = 27,226.26/x
  3. Step 3: Cross multiply
    80,529.12x = 120,806.64 × 27,226.26
  4. Step 4: Simplify right side
    80,529.12x = 3,289,112,990.37
  5. Step 5: Solve for x
    x = 3,289,112,990.37/80,529.12
  6. Step 6: Final answer
    x = 40,843.77

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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.