Home / 87,036.54-120,110.22-49,310.79

Finding the Fourth Proportional to 87,036.54, 120,110.22 and 49,310.79

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Solution

The fourth proportional to 87,036.54, 120,110.22 and 49,310.79 is: 68,048.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,036.54 : 120,110.22 = 49,310.79 : x
  2. Step 2: Convert to fraction form
    87,036.54/120,110.22 = 49,310.79/x
  3. Step 3: Cross multiply
    87,036.54x = 120,110.22 × 49,310.79
  4. Step 4: Simplify right side
    87,036.54x = 5,922,729,835.27
  5. Step 5: Solve for x
    x = 5,922,729,835.27/87,036.54
  6. Step 6: Final answer
    x = 68,048.77

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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.