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Finding the Fourth Proportional to 80,474.77, 120,712.15 and 27,884.25

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Solution

The fourth proportional to 80,474.77, 120,712.15 and 27,884.25 is: 41,826.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,474.77 : 120,712.15 = 27,884.25 : x
  2. Step 2: Convert to fraction form
    80,474.77/120,712.15 = 27,884.25/x
  3. Step 3: Cross multiply
    80,474.77x = 120,712.15 × 27,884.25
  4. Step 4: Simplify right side
    80,474.77x = 3,365,967,725.07
  5. Step 5: Solve for x
    x = 3,365,967,725.07/80,474.77
  6. Step 6: Final answer
    x = 41,826.38

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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.