Home / 87,579.78-120,860.22-49,854

Finding the Fourth Proportional to 87,579.78, 120,860.22 and 49,854

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Solution

The fourth proportional to 87,579.78, 120,860.22 and 49,854 is: 68,798.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,579.78 : 120,860.22 = 49,854 : x
  2. Step 2: Convert to fraction form
    87,579.78/120,860.22 = 49,854/x
  3. Step 3: Cross multiply
    87,579.78x = 120,860.22 × 49,854
  4. Step 4: Simplify right side
    87,579.78x = 6,025,365,407.88
  5. Step 5: Solve for x
    x = 6,025,365,407.88/87,579.78
  6. Step 6: Final answer
    x = 68,798.59

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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.