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Finding the Fourth Proportional to 80,505.37, 120,719.21 and 33,745.69

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Solution

The fourth proportional to 80,505.37, 120,719.21 and 33,745.69 is: 50,602.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,505.37 : 120,719.21 = 33,745.69 : x
  2. Step 2: Convert to fraction form
    80,505.37/120,719.21 = 33,745.69/x
  3. Step 3: Cross multiply
    80,505.37x = 120,719.21 × 33,745.69
  4. Step 4: Simplify right side
    80,505.37x = 4,073,753,037.70
  5. Step 5: Solve for x
    x = 4,073,753,037.70/80,505.37
  6. Step 6: Final answer
    x = 50,602.25

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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.