Home / 90,936.44-125,498.59-55,127.96

Finding the Fourth Proportional to 90,936.44, 125,498.59 and 55,127.96

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Solution

The fourth proportional to 90,936.44, 125,498.59 and 55,127.96 is: 76,080.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,936.44 : 125,498.59 = 55,127.96 : x
  2. Step 2: Convert to fraction form
    90,936.44/125,498.59 = 55,127.96/x
  3. Step 3: Cross multiply
    90,936.44x = 125,498.59 × 55,127.96
  4. Step 4: Simplify right side
    90,936.44x = 6,918,481,249.58
  5. Step 5: Solve for x
    x = 6,918,481,249.58/90,936.44
  6. Step 6: Final answer
    x = 76,080.41

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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.