Home / 79,269.30-109,391.61-43,458.54

Finding the Fourth Proportional to 79,269.30, 109,391.61 and 43,458.54

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Solution

The fourth proportional to 79,269.30, 109,391.61 and 43,458.54 is: 59,972.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,269.30 : 109,391.61 = 43,458.54 : x
  2. Step 2: Convert to fraction form
    79,269.30/109,391.61 = 43,458.54/x
  3. Step 3: Cross multiply
    79,269.30x = 109,391.61 × 43,458.54
  4. Step 4: Simplify right side
    79,269.30x = 4,753,999,658.85
  5. Step 5: Solve for x
    x = 4,753,999,658.85/79,269.30
  6. Step 6: Final answer
    x = 59,972.77

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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.