Home / 79,788.19-110,105.76-43,977.42

Finding the Fourth Proportional to 79,788.19, 110,105.76 and 43,977.42

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Solution

The fourth proportional to 79,788.19, 110,105.76 and 43,977.42 is: 60,687.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,788.19 : 110,105.76 = 43,977.42 : x
  2. Step 2: Convert to fraction form
    79,788.19/110,105.76 = 43,977.42/x
  3. Step 3: Cross multiply
    79,788.19x = 110,105.76 × 43,977.42
  4. Step 4: Simplify right side
    79,788.19x = 4,842,167,251.94
  5. Step 5: Solve for x
    x = 4,842,167,251.94/79,788.19
  6. Step 6: Final answer
    x = 60,687.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.