Home / 87,738.31-121,093.75-49,508.69

Finding the Fourth Proportional to 87,738.31, 121,093.75 and 49,508.69

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Solution

The fourth proportional to 87,738.31, 121,093.75 and 49,508.69 is: 68,330.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,738.31 : 121,093.75 = 49,508.69 : x
  2. Step 2: Convert to fraction form
    87,738.31/121,093.75 = 49,508.69/x
  3. Step 3: Cross multiply
    87,738.31x = 121,093.75 × 49,508.69
  4. Step 4: Simplify right side
    87,738.31x = 5,995,192,929.69
  5. Step 5: Solve for x
    x = 5,995,192,929.69/87,738.31
  6. Step 6: Final answer
    x = 68,330.39

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1.5x scale

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.