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Finding the Fourth Proportional to 72,579.99, 108,870 and 22,664.37

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Solution

The fourth proportional to 72,579.99, 108,870 and 22,664.37 is: 33,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,579.99 : 108,870 = 22,664.37 : x
  2. Step 2: Convert to fraction form
    72,579.99/108,870 = 22,664.37/x
  3. Step 3: Cross multiply
    72,579.99x = 108,870 × 22,664.37
  4. Step 4: Simplify right side
    72,579.99x = 2,467,469,961.90
  5. Step 5: Solve for x
    x = 2,467,469,961.90/72,579.99
  6. Step 6: Final answer
    x = 33,996.56

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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.