Home / 87,801.75-121,165.39-47,514.58

Finding the Fourth Proportional to 87,801.75, 121,165.39 and 47,514.58

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Solution

The fourth proportional to 87,801.75, 121,165.39 and 47,514.58 is: 65,569.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,801.75 : 121,165.39 = 47,514.58 : x
  2. Step 2: Convert to fraction form
    87,801.75/121,165.39 = 47,514.58/x
  3. Step 3: Cross multiply
    87,801.75x = 121,165.39 × 47,514.58
  4. Step 4: Simplify right side
    87,801.75x = 5,757,122,616.39
  5. Step 5: Solve for x
    x = 5,757,122,616.39/87,801.75
  6. Step 6: Final answer
    x = 65,569.57

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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.