Home / 87,738.56-121,094.09-49,508.94

Finding the Fourth Proportional to 87,738.56, 121,094.09 and 49,508.94

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Solution

The fourth proportional to 87,738.56, 121,094.09 and 49,508.94 is: 68,330.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,738.56 : 121,094.09 = 49,508.94 : x
  2. Step 2: Convert to fraction form
    87,738.56/121,094.09 = 49,508.94/x
  3. Step 3: Cross multiply
    87,738.56x = 121,094.09 × 49,508.94
  4. Step 4: Simplify right side
    87,738.56x = 5,995,240,159.94
  5. Step 5: Solve for x
    x = 5,995,240,159.94/87,738.56
  6. Step 6: Final answer
    x = 68,330.74

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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.