Home / 74,221.94-111,351.36-21,631.88

Finding the Fourth Proportional to 74,221.94, 111,351.36 and 21,631.88

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Solution

The fourth proportional to 74,221.94, 111,351.36 and 21,631.88 is: 32,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,221.94 : 111,351.36 = 21,631.88 : x
  2. Step 2: Convert to fraction form
    74,221.94/111,351.36 = 21,631.88/x
  3. Step 3: Cross multiply
    74,221.94x = 111,351.36 × 21,631.88
  4. Step 4: Simplify right side
    74,221.94x = 2,408,739,257.36
  5. Step 5: Solve for x
    x = 2,408,739,257.36/74,221.94
  6. Step 6: Final answer
    x = 32,453.20

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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.