Home / 54,764.75-82,171.83-31,391.21

Finding the Fourth Proportional to 54,764.75, 82,171.83 and 31,391.21

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Solution

The fourth proportional to 54,764.75, 82,171.83 and 31,391.21 is: 47,100.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,764.75 : 82,171.83 = 31,391.21 : x
  2. Step 2: Convert to fraction form
    54,764.75/82,171.83 = 31,391.21/x
  3. Step 3: Cross multiply
    54,764.75x = 82,171.83 × 31,391.21
  4. Step 4: Simplify right side
    54,764.75x = 2,579,473,171.61
  5. Step 5: Solve for x
    x = 2,579,473,171.61/54,764.75
  6. Step 6: Final answer
    x = 47,100.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.