Home / 80,441.14-120,661.74-27,821.92

Finding the Fourth Proportional to 80,441.14, 120,661.74 and 27,821.92

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Solution

The fourth proportional to 80,441.14, 120,661.74 and 27,821.92 is: 41,732.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,441.14 : 120,661.74 = 27,821.92 : x
  2. Step 2: Convert to fraction form
    80,441.14/120,661.74 = 27,821.92/x
  3. Step 3: Cross multiply
    80,441.14x = 120,661.74 × 27,821.92
  4. Step 4: Simplify right side
    80,441.14x = 3,357,041,277.34
  5. Step 5: Solve for x
    x = 3,357,041,277.34/80,441.14
  6. Step 6: Final answer
    x = 41,732.89

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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.