Home / 79,120.25-109,185.93-43,310.28

Finding the Fourth Proportional to 79,120.25, 109,185.93 and 43,310.28

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Solution

The fourth proportional to 79,120.25, 109,185.93 and 43,310.28 is: 59,768.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,120.25 : 109,185.93 = 43,310.28 : x
  2. Step 2: Convert to fraction form
    79,120.25/109,185.93 = 43,310.28/x
  3. Step 3: Cross multiply
    79,120.25x = 109,185.93 × 43,310.28
  4. Step 4: Simplify right side
    79,120.25x = 4,728,873,200.36
  5. Step 5: Solve for x
    x = 4,728,873,200.36/79,120.25
  6. Step 6: Final answer
    x = 59,768.18

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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.