Home / 80,930.30-121,404.27-31,052.75

Finding the Fourth Proportional to 80,930.30, 121,404.27 and 31,052.75

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Solution

The fourth proportional to 80,930.30, 121,404.27 and 31,052.75 is: 46,582.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,930.30 : 121,404.27 = 31,052.75 : x
  2. Step 2: Convert to fraction form
    80,930.30/121,404.27 = 31,052.75/x
  3. Step 3: Cross multiply
    80,930.30x = 121,404.27 × 31,052.75
  4. Step 4: Simplify right side
    80,930.30x = 3,769,936,445.24
  5. Step 5: Solve for x
    x = 3,769,936,445.24/80,930.30
  6. Step 6: Final answer
    x = 46,582.51

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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.