Home / 80,971.25-121,456.87-41,503.19

Finding the Fourth Proportional to 80,971.25, 121,456.87 and 41,503.19

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Solution

The fourth proportional to 80,971.25, 121,456.87 and 41,503.19 is: 62,254.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,971.25 : 121,456.87 = 41,503.19 : x
  2. Step 2: Convert to fraction form
    80,971.25/121,456.87 = 41,503.19/x
  3. Step 3: Cross multiply
    80,971.25x = 121,456.87 × 41,503.19
  4. Step 4: Simplify right side
    80,971.25x = 5,040,846,841.37
  5. Step 5: Solve for x
    x = 5,040,846,841.37/80,971.25
  6. Step 6: Final answer
    x = 62,254.78

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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.