Home / 49,321.36-68,009.96-31,393.44

Finding the Fourth Proportional to 49,321.36, 68,009.96 and 31,393.44

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Solution

The fourth proportional to 49,321.36, 68,009.96 and 31,393.44 is: 43,288.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,321.36 : 68,009.96 = 31,393.44 : x
  2. Step 2: Convert to fraction form
    49,321.36/68,009.96 = 31,393.44/x
  3. Step 3: Cross multiply
    49,321.36x = 68,009.96 × 31,393.44
  4. Step 4: Simplify right side
    49,321.36x = 2,135,066,598.66
  5. Step 5: Solve for x
    x = 2,135,066,598.66/49,321.36
  6. Step 6: Final answer
    x = 43,288.88

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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.