Home / 87,867.27-121,257.41-47,581.04

Finding the Fourth Proportional to 87,867.27, 121,257.41 and 47,581.04

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Solution

The fourth proportional to 87,867.27, 121,257.41 and 47,581.04 is: 65,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.27 : 121,257.41 = 47,581.04 : x
  2. Step 2: Convert to fraction form
    87,867.27/121,257.41 = 47,581.04/x
  3. Step 3: Cross multiply
    87,867.27x = 121,257.41 × 47,581.04
  4. Step 4: Simplify right side
    87,867.27x = 5,769,553,675.51
  5. Step 5: Solve for x
    x = 5,769,553,675.51/87,867.27
  6. Step 6: Final answer
    x = 65,662.15

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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.