Home / 74,481.37-111,722.07-21,890.90

Finding the Fourth Proportional to 74,481.37, 111,722.07 and 21,890.90

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Solution

The fourth proportional to 74,481.37, 111,722.07 and 21,890.90 is: 32,836.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,481.37 : 111,722.07 = 21,890.90 : x
  2. Step 2: Convert to fraction form
    74,481.37/111,722.07 = 21,890.90/x
  3. Step 3: Cross multiply
    74,481.37x = 111,722.07 × 21,890.90
  4. Step 4: Simplify right side
    74,481.37x = 2,445,696,662.16
  5. Step 5: Solve for x
    x = 2,445,696,662.16/74,481.37
  6. Step 6: Final answer
    x = 32,836.36

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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.