Home / 87,719.71-121,066.83-57,592.42

Finding the Fourth Proportional to 87,719.71, 121,066.83 and 57,592.42

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Solution

The fourth proportional to 87,719.71, 121,066.83 and 57,592.42 is: 79,486.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,719.71 : 121,066.83 = 57,592.42 : x
  2. Step 2: Convert to fraction form
    87,719.71/121,066.83 = 57,592.42/x
  3. Step 3: Cross multiply
    87,719.71x = 121,066.83 × 57,592.42
  4. Step 4: Simplify right side
    87,719.71x = 6,972,531,721.43
  5. Step 5: Solve for x
    x = 6,972,531,721.43/87,719.71
  6. Step 6: Final answer
    x = 79,486.49

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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.