Home / 55,163.64-76,139.42-31,304.69

Finding the Fourth Proportional to 55,163.64, 76,139.42 and 31,304.69

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Solution

The fourth proportional to 55,163.64, 76,139.42 and 31,304.69 is: 43,208.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,163.64 : 76,139.42 = 31,304.69 : x
  2. Step 2: Convert to fraction form
    55,163.64/76,139.42 = 31,304.69/x
  3. Step 3: Cross multiply
    55,163.64x = 76,139.42 × 31,304.69
  4. Step 4: Simplify right side
    55,163.64x = 2,383,520,939.88
  5. Step 5: Solve for x
    x = 2,383,520,939.88/55,163.64
  6. Step 6: Final answer
    x = 43,208.19

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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.