Home / 79,127.25-109,195.77-43,319.49

Finding the Fourth Proportional to 79,127.25, 109,195.77 and 43,319.49

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Solution

The fourth proportional to 79,127.25, 109,195.77 and 43,319.49 is: 59,780.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,127.25 : 109,195.77 = 43,319.49 : x
  2. Step 2: Convert to fraction form
    79,127.25/109,195.77 = 43,319.49/x
  3. Step 3: Cross multiply
    79,127.25x = 109,195.77 × 43,319.49
  4. Step 4: Simplify right side
    79,127.25x = 4,730,305,066.56
  5. Step 5: Solve for x
    x = 4,730,305,066.56/79,127.25
  6. Step 6: Final answer
    x = 59,780.99

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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.