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Finding the Fourth Proportional to 80,617.60, 120,945.60 and 33,846.40

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Solution

The fourth proportional to 80,617.60, 120,945.60 and 33,846.40 is: 50,777.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,617.60 : 120,945.60 = 33,846.40 : x
  2. Step 2: Convert to fraction form
    80,617.60/120,945.60 = 33,846.40/x
  3. Step 3: Cross multiply
    80,617.60x = 120,945.60 × 33,846.40
  4. Step 4: Simplify right side
    80,617.60x = 4,093,573,155.84
  5. Step 5: Solve for x
    x = 4,093,573,155.84/80,617.60
  6. Step 6: Final answer
    x = 50,777.66

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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.