Home / 80,980.26-121,470.36-41,512.20

Finding the Fourth Proportional to 80,980.26, 121,470.36 and 41,512.20

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Solution

The fourth proportional to 80,980.26, 121,470.36 and 41,512.20 is: 62,268.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,980.26 : 121,470.36 = 41,512.20 : x
  2. Step 2: Convert to fraction form
    80,980.26/121,470.36 = 41,512.20/x
  3. Step 3: Cross multiply
    80,980.26x = 121,470.36 × 41,512.20
  4. Step 4: Simplify right side
    80,980.26x = 5,042,501,878.39
  5. Step 5: Solve for x
    x = 5,042,501,878.39/80,980.26
  6. Step 6: Final answer
    x = 62,268.28

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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.