Home / 87,566.11-120,844.20-51,786.79

Finding the Fourth Proportional to 87,566.11, 120,844.20 and 51,786.79

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Solution

The fourth proportional to 87,566.11, 120,844.20 and 51,786.79 is: 71,467.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,566.11 : 120,844.20 = 51,786.79 : x
  2. Step 2: Convert to fraction form
    87,566.11/120,844.20 = 51,786.79/x
  3. Step 3: Cross multiply
    87,566.11x = 120,844.20 × 51,786.79
  4. Step 4: Simplify right side
    87,566.11x = 6,258,133,208.12
  5. Step 5: Solve for x
    x = 6,258,133,208.12/87,566.11
  6. Step 6: Final answer
    x = 71,467.53

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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.