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Finding the Fourth Proportional to 72,579.78, 108,873.72 and 22,666.77

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Solution

The fourth proportional to 72,579.78, 108,873.72 and 22,666.77 is: 34,001.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,579.78 : 108,873.72 = 22,666.77 : x
  2. Step 2: Convert to fraction form
    72,579.78/108,873.72 = 22,666.77/x
  3. Step 3: Cross multiply
    72,579.78x = 108,873.72 × 22,666.77
  4. Step 4: Simplify right side
    72,579.78x = 2,467,815,570.28
  5. Step 5: Solve for x
    x = 2,467,815,570.28/72,579.78
  6. Step 6: Final answer
    x = 34,001.42

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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.