Home / 45,216.74-67,819.26-11,939.31

Finding the Fourth Proportional to 45,216.74, 67,819.26 and 11,939.31

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Solution

The fourth proportional to 45,216.74, 67,819.26 and 11,939.31 is: 17,907.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,216.74 : 67,819.26 = 11,939.31 : x
  2. Step 2: Convert to fraction form
    45,216.74/67,819.26 = 11,939.31/x
  3. Step 3: Cross multiply
    45,216.74x = 67,819.26 × 11,939.31
  4. Step 4: Simplify right side
    45,216.74x = 809,715,169.11
  5. Step 5: Solve for x
    x = 809,715,169.11/45,216.74
  6. Step 6: Final answer
    x = 17,907.42

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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.