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Finding the Fourth Proportional to 80,296.01, 120,455.08 and 26,992.13

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Solution

The fourth proportional to 80,296.01, 120,455.08 and 26,992.13 is: 40,491.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,296.01 : 120,455.08 = 26,992.13 : x
  2. Step 2: Convert to fraction form
    80,296.01/120,455.08 = 26,992.13/x
  3. Step 3: Cross multiply
    80,296.01x = 120,455.08 × 26,992.13
  4. Step 4: Simplify right side
    80,296.01x = 3,251,339,338.16
  5. Step 5: Solve for x
    x = 3,251,339,338.16/80,296.01
  6. Step 6: Final answer
    x = 40,491.91

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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.