Home / 55,171.21-76,137.75-31,301.47

Finding the Fourth Proportional to 55,171.21, 76,137.75 and 31,301.47

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Solution

The fourth proportional to 55,171.21, 76,137.75 and 31,301.47 is: 43,196.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,171.21 : 76,137.75 = 31,301.47 : x
  2. Step 2: Convert to fraction form
    55,171.21/76,137.75 = 31,301.47/x
  3. Step 3: Cross multiply
    55,171.21x = 76,137.75 × 31,301.47
  4. Step 4: Simplify right side
    55,171.21x = 2,383,223,497.49
  5. Step 5: Solve for x
    x = 2,383,223,497.49/55,171.21
  6. Step 6: Final answer
    x = 43,196.87

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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.