Home / 80,292.75-120,455.46-27,695.40

Finding the Fourth Proportional to 80,292.75, 120,455.46 and 27,695.40

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Solution

The fourth proportional to 80,292.75, 120,455.46 and 27,695.40 is: 41,548.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,292.75 : 120,455.46 = 27,695.40 : x
  2. Step 2: Convert to fraction form
    80,292.75/120,455.46 = 27,695.40/x
  3. Step 3: Cross multiply
    80,292.75x = 120,455.46 × 27,695.40
  4. Step 4: Simplify right side
    80,292.75x = 3,336,062,146.88
  5. Step 5: Solve for x
    x = 3,336,062,146.88/80,292.75
  6. Step 6: Final answer
    x = 41,548.73

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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.