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Finding the Fourth Proportional to 80,173.51, 120,240.82 and 33,400.87

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Solution

The fourth proportional to 80,173.51, 120,240.82 and 33,400.87 is: 50,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,173.51 : 120,240.82 = 33,400.87 : x
  2. Step 2: Convert to fraction form
    80,173.51/120,240.82 = 33,400.87/x
  3. Step 3: Cross multiply
    80,173.51x = 120,240.82 × 33,400.87
  4. Step 4: Simplify right side
    80,173.51x = 4,016,147,997.51
  5. Step 5: Solve for x
    x = 4,016,147,997.51/80,173.51
  6. Step 6: Final answer
    x = 50,093.20

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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.