Home / 87,723.42-121,053.68-49,481.88

Finding the Fourth Proportional to 87,723.42, 121,053.68 and 49,481.88

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Solution

The fourth proportional to 87,723.42, 121,053.68 and 49,481.88 is: 68,282.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,723.42 : 121,053.68 = 49,481.88 : x
  2. Step 2: Convert to fraction form
    87,723.42/121,053.68 = 49,481.88/x
  3. Step 3: Cross multiply
    87,723.42x = 121,053.68 × 49,481.88
  4. Step 4: Simplify right side
    87,723.42x = 5,989,963,667.32
  5. Step 5: Solve for x
    x = 5,989,963,667.32/87,723.42
  6. Step 6: Final answer
    x = 68,282.38

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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.