Home / 79,078.92-109,130.49-43,269.69

Finding the Fourth Proportional to 79,078.92, 109,130.49 and 43,269.69

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Solution

The fourth proportional to 79,078.92, 109,130.49 and 43,269.69 is: 59,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,078.92 : 109,130.49 = 43,269.69 : x
  2. Step 2: Convert to fraction form
    79,078.92/109,130.49 = 43,269.69/x
  3. Step 3: Cross multiply
    79,078.92x = 109,130.49 × 43,269.69
  4. Step 4: Simplify right side
    79,078.92x = 4,722,042,881.09
  5. Step 5: Solve for x
    x = 4,722,042,881.09/79,078.92
  6. Step 6: Final answer
    x = 59,713.04

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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.