Home / 80,110.31-120,173.69-30,232.40

Finding the Fourth Proportional to 80,110.31, 120,173.69 and 30,232.40

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Solution

The fourth proportional to 80,110.31, 120,173.69 and 30,232.40 is: 45,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,110.31 : 120,173.69 = 30,232.40 : x
  2. Step 2: Convert to fraction form
    80,110.31/120,173.69 = 30,232.40/x
  3. Step 3: Cross multiply
    80,110.31x = 120,173.69 × 30,232.40
  4. Step 4: Simplify right side
    80,110.31x = 3,633,138,540.27
  5. Step 5: Solve for x
    x = 3,633,138,540.27/80,110.31
  6. Step 6: Final answer
    x = 45,351.70

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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.