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Finding the Fourth Proportional to 79,083.27, 109,131.66 and 47,269.71

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Solution

The fourth proportional to 79,083.27, 109,131.66 and 47,269.71 is: 65,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,083.27 : 109,131.66 = 47,269.71 : x
  2. Step 2: Convert to fraction form
    79,083.27/109,131.66 = 47,269.71/x
  3. Step 3: Cross multiply
    79,083.27x = 109,131.66 × 47,269.71
  4. Step 4: Simplify right side
    79,083.27x = 5,158,621,920.02
  5. Step 5: Solve for x
    x = 5,158,621,920.02/79,083.27
  6. Step 6: Final answer
    x = 65,230.26

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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.