Home / 87,888.73-121,286.46-49,648.36

Finding the Fourth Proportional to 87,888.73, 121,286.46 and 49,648.36

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Solution

The fourth proportional to 87,888.73, 121,286.46 and 49,648.36 is: 68,514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,888.73 : 121,286.46 = 49,648.36 : x
  2. Step 2: Convert to fraction form
    87,888.73/121,286.46 = 49,648.36/x
  3. Step 3: Cross multiply
    87,888.73x = 121,286.46 × 49,648.36
  4. Step 4: Simplify right side
    87,888.73x = 6,021,673,427.91
  5. Step 5: Solve for x
    x = 6,021,673,427.91/87,888.73
  6. Step 6: Final answer
    x = 68,514.74

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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.