Home / 80,980.25-121,470.39-41,512.19

Finding the Fourth Proportional to 80,980.25, 121,470.39 and 41,512.19

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Solution

The fourth proportional to 80,980.25, 121,470.39 and 41,512.19 is: 62,268.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,980.25 : 121,470.39 = 41,512.19 : x
  2. Step 2: Convert to fraction form
    80,980.25/121,470.39 = 41,512.19/x
  3. Step 3: Cross multiply
    80,980.25x = 121,470.39 × 41,512.19
  4. Step 4: Simplify right side
    80,980.25x = 5,042,501,301.70
  5. Step 5: Solve for x
    x = 5,042,501,301.70/80,980.25
  6. Step 6: Final answer
    x = 62,268.29

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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.