Home / 87,565.37-120,843.17-51,786.05

Finding the Fourth Proportional to 87,565.37, 120,843.17 and 51,786.05

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Solution

The fourth proportional to 87,565.37, 120,843.17 and 51,786.05 is: 71,466.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,565.37 : 120,843.17 = 51,786.05 : x
  2. Step 2: Convert to fraction form
    87,565.37/120,843.17 = 51,786.05/x
  3. Step 3: Cross multiply
    87,565.37x = 120,843.17 × 51,786.05
  4. Step 4: Simplify right side
    87,565.37x = 6,257,989,580.63
  5. Step 5: Solve for x
    x = 6,257,989,580.63/87,565.37
  6. Step 6: Final answer
    x = 71,466.49

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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.