Home / 81,654.44-122,433.98-31,676.14

Finding the Fourth Proportional to 81,654.44, 122,433.98 and 31,676.14

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Solution

The fourth proportional to 81,654.44, 122,433.98 and 31,676.14 is: 47,495.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,654.44 : 122,433.98 = 31,676.14 : x
  2. Step 2: Convert to fraction form
    81,654.44/122,433.98 = 31,676.14/x
  3. Step 3: Cross multiply
    81,654.44x = 122,433.98 × 31,676.14
  4. Step 4: Simplify right side
    81,654.44x = 3,878,235,570.69
  5. Step 5: Solve for x
    x = 3,878,235,570.69/81,654.44
  6. Step 6: Final answer
    x = 47,495.71

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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.