Home / 87,685.43-121,008.62-49,957.25

Finding the Fourth Proportional to 87,685.43, 121,008.62 and 49,957.25

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Solution

The fourth proportional to 87,685.43, 121,008.62 and 49,957.25 is: 68,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,685.43 : 121,008.62 = 49,957.25 : x
  2. Step 2: Convert to fraction form
    87,685.43/121,008.62 = 49,957.25/x
  3. Step 3: Cross multiply
    87,685.43x = 121,008.62 × 49,957.25
  4. Step 4: Simplify right side
    87,685.43x = 6,045,257,631.71
  5. Step 5: Solve for x
    x = 6,045,257,631.71/87,685.43
  6. Step 6: Final answer
    x = 68,942.56

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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.