Home / 87,418.05-120,633.41-51,619.59

Finding the Fourth Proportional to 87,418.05, 120,633.41 and 51,619.59

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Solution

The fourth proportional to 87,418.05, 120,633.41 and 51,619.59 is: 71,232.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,418.05 : 120,633.41 = 51,619.59 : x
  2. Step 2: Convert to fraction form
    87,418.05/120,633.41 = 51,619.59/x
  3. Step 3: Cross multiply
    87,418.05x = 120,633.41 × 51,619.59
  4. Step 4: Simplify right side
    87,418.05x = 6,227,046,906.40
  5. Step 5: Solve for x
    x = 6,227,046,906.40/87,418.05
  6. Step 6: Final answer
    x = 71,232.97

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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.