Home / 80,734.82-121,132.98-36,351.37

Finding the Fourth Proportional to 80,734.82, 121,132.98 and 36,351.37

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Solution

The fourth proportional to 80,734.82, 121,132.98 and 36,351.37 is: 54,540.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,734.82 : 121,132.98 = 36,351.37 : x
  2. Step 2: Convert to fraction form
    80,734.82/121,132.98 = 36,351.37/x
  3. Step 3: Cross multiply
    80,734.82x = 121,132.98 × 36,351.37
  4. Step 4: Simplify right side
    80,734.82x = 4,403,349,775.18
  5. Step 5: Solve for x
    x = 4,403,349,775.18/80,734.82
  6. Step 6: Final answer
    x = 54,540.90

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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.