Home / 87,966.23-121,392.09-49,724.43

Finding the Fourth Proportional to 87,966.23, 121,392.09 and 49,724.43

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Solution

The fourth proportional to 87,966.23, 121,392.09 and 49,724.43 is: 68,618.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,966.23 : 121,392.09 = 49,724.43 : x
  2. Step 2: Convert to fraction form
    87,966.23/121,392.09 = 49,724.43/x
  3. Step 3: Cross multiply
    87,966.23x = 121,392.09 × 49,724.43
  4. Step 4: Simplify right side
    87,966.23x = 6,036,152,481.76
  5. Step 5: Solve for x
    x = 6,036,152,481.76/87,966.23
  6. Step 6: Final answer
    x = 68,618.98

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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.