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Finding the Fourth Proportional to 79,605, 109,855.44 and 43,306.77

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Solution

The fourth proportional to 79,605, 109,855.44 and 43,306.77 is: 59,763.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,605 : 109,855.44 = 43,306.77 : x
  2. Step 2: Convert to fraction form
    79,605/109,855.44 = 43,306.77/x
  3. Step 3: Cross multiply
    79,605x = 109,855.44 × 43,306.77
  4. Step 4: Simplify right side
    79,605x = 4,757,484,273.33
  5. Step 5: Solve for x
    x = 4,757,484,273.33/79,605
  6. Step 6: Final answer
    x = 59,763.64

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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.