Home / 87,924.47-121,268.79-75,680.71

Finding the Fourth Proportional to 87,924.47, 121,268.79 and 75,680.71

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Solution

The fourth proportional to 87,924.47, 121,268.79 and 75,680.71 is: 104,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,924.47 : 121,268.79 = 75,680.71 : x
  2. Step 2: Convert to fraction form
    87,924.47/121,268.79 = 75,680.71/x
  3. Step 3: Cross multiply
    87,924.47x = 121,268.79 × 75,680.71
  4. Step 4: Simplify right side
    87,924.47x = 9,177,707,824.87
  5. Step 5: Solve for x
    x = 9,177,707,824.87/87,924.47
  6. Step 6: Final answer
    x = 104,381.73

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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.