Home / 87,198.45-120,370.42-58,942.41

Finding the Fourth Proportional to 87,198.45, 120,370.42 and 58,942.41

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Solution

The fourth proportional to 87,198.45, 120,370.42 and 58,942.41 is: 81,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,198.45 : 120,370.42 = 58,942.41 : x
  2. Step 2: Convert to fraction form
    87,198.45/120,370.42 = 58,942.41/x
  3. Step 3: Cross multiply
    87,198.45x = 120,370.42 × 58,942.41
  4. Step 4: Simplify right side
    87,198.45x = 7,094,922,647.51
  5. Step 5: Solve for x
    x = 7,094,922,647.51/87,198.45
  6. Step 6: Final answer
    x = 81,365.24

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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.