Home / 80,222.76-120,332.61-27,631.08

Finding the Fourth Proportional to 80,222.76, 120,332.61 and 27,631.08

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Solution

The fourth proportional to 80,222.76, 120,332.61 and 27,631.08 is: 41,446.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,222.76 : 120,332.61 = 27,631.08 : x
  2. Step 2: Convert to fraction form
    80,222.76/120,332.61 = 27,631.08/x
  3. Step 3: Cross multiply
    80,222.76x = 120,332.61 × 27,631.08
  4. Step 4: Simplify right side
    80,222.76x = 3,324,919,973.52
  5. Step 5: Solve for x
    x = 3,324,919,973.52/80,222.76
  6. Step 6: Final answer
    x = 41,446.09

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1.5x scale

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.