Home / 75,851.75-113,789.96-28,470.56

Finding the Fourth Proportional to 75,851.75, 113,789.96 and 28,470.56

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Solution

The fourth proportional to 75,851.75, 113,789.96 and 28,470.56 is: 42,710.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,851.75 : 113,789.96 = 28,470.56 : x
  2. Step 2: Convert to fraction form
    75,851.75/113,789.96 = 28,470.56/x
  3. Step 3: Cross multiply
    75,851.75x = 113,789.96 × 28,470.56
  4. Step 4: Simplify right side
    75,851.75x = 3,239,664,399.29
  5. Step 5: Solve for x
    x = 3,239,664,399.29/75,851.75
  6. Step 6: Final answer
    x = 42,710.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.