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Finding the Fourth Proportional to 79,351.83, 109,369.16 and 75,614.79

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Solution

The fourth proportional to 79,351.83, 109,369.16 and 75,614.79 is: 104,218.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,351.83 : 109,369.16 = 75,614.79 : x
  2. Step 2: Convert to fraction form
    79,351.83/109,369.16 = 75,614.79/x
  3. Step 3: Cross multiply
    79,351.83x = 109,369.16 × 75,614.79
  4. Step 4: Simplify right side
    79,351.83x = 8,269,926,065.88
  5. Step 5: Solve for x
    x = 8,269,926,065.88/79,351.83
  6. Step 6: Final answer
    x = 104,218.47

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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.