Home / 87,794.37-121,156.09-49,561.97

Finding the Fourth Proportional to 87,794.37, 121,156.09 and 49,561.97

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Solution

The fourth proportional to 87,794.37, 121,156.09 and 49,561.97 is: 68,395.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,794.37 : 121,156.09 = 49,561.97 : x
  2. Step 2: Convert to fraction form
    87,794.37/121,156.09 = 49,561.97/x
  3. Step 3: Cross multiply
    87,794.37x = 121,156.09 × 49,561.97
  4. Step 4: Simplify right side
    87,794.37x = 6,004,733,768.21
  5. Step 5: Solve for x
    x = 6,004,733,768.21/87,794.37
  6. Step 6: Final answer
    x = 68,395.43

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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.