Home / 87,198.95-120,371.12-58,942.91

Finding the Fourth Proportional to 87,198.95, 120,371.12 and 58,942.91

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Solution

The fourth proportional to 87,198.95, 120,371.12 and 58,942.91 is: 81,365.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,198.95 : 120,371.12 = 58,942.91 : x
  2. Step 2: Convert to fraction form
    87,198.95/120,371.12 = 58,942.91/x
  3. Step 3: Cross multiply
    87,198.95x = 120,371.12 × 58,942.91
  4. Step 4: Simplify right side
    87,198.95x = 7,095,023,196.19
  5. Step 5: Solve for x
    x = 7,095,023,196.19/87,198.95
  6. Step 6: Final answer
    x = 81,365.93

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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.