Home / 80,788.70-121,126.82-35,785.62

Finding the Fourth Proportional to 80,788.70, 121,126.82 and 35,785.62

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Solution

The fourth proportional to 80,788.70, 121,126.82 and 35,785.62 is: 53,653.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,788.70 : 121,126.82 = 35,785.62 : x
  2. Step 2: Convert to fraction form
    80,788.70/121,126.82 = 35,785.62/x
  3. Step 3: Cross multiply
    80,788.70x = 121,126.82 × 35,785.62
  4. Step 4: Simplify right side
    80,788.70x = 4,334,598,352.33
  5. Step 5: Solve for x
    x = 4,334,598,352.33/80,788.70
  6. Step 6: Final answer
    x = 53,653.53

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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.