Home / 87,894.82-121,286.19-49,125.49

Finding the Fourth Proportional to 87,894.82, 121,286.19 and 49,125.49

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Solution

The fourth proportional to 87,894.82, 121,286.19 and 49,125.49 is: 67,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,894.82 : 121,286.19 = 49,125.49 : x
  2. Step 2: Convert to fraction form
    87,894.82/121,286.19 = 49,125.49/x
  3. Step 3: Cross multiply
    87,894.82x = 121,286.19 × 49,125.49
  4. Step 4: Simplify right side
    87,894.82x = 5,958,242,980.49
  5. Step 5: Solve for x
    x = 5,958,242,980.49/87,894.82
  6. Step 6: Final answer
    x = 67,788.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.