Home / 87,073.88-120,163.38-49,347.32

Finding the Fourth Proportional to 87,073.88, 120,163.38 and 49,347.32

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Solution

The fourth proportional to 87,073.88, 120,163.38 and 49,347.32 is: 68,100.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,073.88 : 120,163.38 = 49,347.32 : x
  2. Step 2: Convert to fraction form
    87,073.88/120,163.38 = 49,347.32/x
  3. Step 3: Cross multiply
    87,073.88x = 120,163.38 × 49,347.32
  4. Step 4: Simplify right side
    87,073.88x = 5,929,740,765.14
  5. Step 5: Solve for x
    x = 5,929,740,765.14/87,073.88
  6. Step 6: Final answer
    x = 68,100.11

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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.