Home / 57,676.26-86,542.05-31,380.96

Finding the Fourth Proportional to 57,676.26, 86,542.05 and 31,380.96

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Solution

The fourth proportional to 57,676.26, 86,542.05 and 31,380.96 is: 47,086.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,676.26 : 86,542.05 = 31,380.96 : x
  2. Step 2: Convert to fraction form
    57,676.26/86,542.05 = 31,380.96/x
  3. Step 3: Cross multiply
    57,676.26x = 86,542.05 × 31,380.96
  4. Step 4: Simplify right side
    57,676.26x = 2,715,772,609.37
  5. Step 5: Solve for x
    x = 2,715,772,609.37/57,676.26
  6. Step 6: Final answer
    x = 47,086.49

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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.