Home / 87,822.36-132,422.40-80,474.04

Finding the Fourth Proportional to 87,822.36, 132,422.40 and 80,474.04

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Solution

The fourth proportional to 87,822.36, 132,422.40 and 80,474.04 is: 121,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,822.36 : 132,422.40 = 80,474.04 : x
  2. Step 2: Convert to fraction form
    87,822.36/132,422.40 = 80,474.04/x
  3. Step 3: Cross multiply
    87,822.36x = 132,422.40 × 80,474.04
  4. Step 4: Simplify right side
    87,822.36x = 10,656,565,514.50
  5. Step 5: Solve for x
    x = 10,656,565,514.50/87,822.36
  6. Step 6: Final answer
    x = 121,342.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.