Home / 75,540.78-104,239.89-43,711.71

Finding the Fourth Proportional to 75,540.78, 104,239.89 and 43,711.71

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Solution

The fourth proportional to 75,540.78, 104,239.89 and 43,711.71 is: 60,318.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,540.78 : 104,239.89 = 43,711.71 : x
  2. Step 2: Convert to fraction form
    75,540.78/104,239.89 = 43,711.71/x
  3. Step 3: Cross multiply
    75,540.78x = 104,239.89 × 43,711.71
  4. Step 4: Simplify right side
    75,540.78x = 4,556,503,842.11
  5. Step 5: Solve for x
    x = 4,556,503,842.11/75,540.78
  6. Step 6: Final answer
    x = 60,318.46

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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.