Home / 87,872.78-121,266.51-50,150.54

Finding the Fourth Proportional to 87,872.78, 121,266.51 and 50,150.54

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Solution

The fourth proportional to 87,872.78, 121,266.51 and 50,150.54 is: 69,208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,872.78 : 121,266.51 = 50,150.54 : x
  2. Step 2: Convert to fraction form
    87,872.78/121,266.51 = 50,150.54/x
  3. Step 3: Cross multiply
    87,872.78x = 121,266.51 × 50,150.54
  4. Step 4: Simplify right side
    87,872.78x = 6,081,580,960.42
  5. Step 5: Solve for x
    x = 6,081,580,960.42/87,872.78
  6. Step 6: Final answer
    x = 69,208.93

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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.