Home / 80,146.81-120,231.15-33,388.75

Finding the Fourth Proportional to 80,146.81, 120,231.15 and 33,388.75

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Solution

The fourth proportional to 80,146.81, 120,231.15 and 33,388.75 is: 50,087.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,146.81 : 120,231.15 = 33,388.75 : x
  2. Step 2: Convert to fraction form
    80,146.81/120,231.15 = 33,388.75/x
  3. Step 3: Cross multiply
    80,146.81x = 120,231.15 × 33,388.75
  4. Step 4: Simplify right side
    80,146.81x = 4,014,367,809.56
  5. Step 5: Solve for x
    x = 4,014,367,809.56/80,146.81
  6. Step 6: Final answer
    x = 50,087.68

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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.