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Finding the Fourth Proportional to 80,512.60, 120,671.70 and 41,049.40

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Solution

The fourth proportional to 80,512.60, 120,671.70 and 41,049.40 is: 61,524.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,512.60 : 120,671.70 = 41,049.40 : x
  2. Step 2: Convert to fraction form
    80,512.60/120,671.70 = 41,049.40/x
  3. Step 3: Cross multiply
    80,512.60x = 120,671.70 × 41,049.40
  4. Step 4: Simplify right side
    80,512.60x = 4,953,500,881.98
  5. Step 5: Solve for x
    x = 4,953,500,881.98/80,512.60
  6. Step 6: Final answer
    x = 61,524.54

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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.