Home / 74,140.62-111,212.76-21,550.56

Finding the Fourth Proportional to 74,140.62, 111,212.76 and 21,550.56

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Solution

The fourth proportional to 74,140.62, 111,212.76 and 21,550.56 is: 32,326.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,140.62 : 111,212.76 = 21,550.56 : x
  2. Step 2: Convert to fraction form
    74,140.62/111,212.76 = 21,550.56/x
  3. Step 3: Cross multiply
    74,140.62x = 111,212.76 × 21,550.56
  4. Step 4: Simplify right side
    74,140.62x = 2,396,697,257.15
  5. Step 5: Solve for x
    x = 2,396,697,257.15/74,140.62
  6. Step 6: Final answer
    x = 32,326.37

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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.