Home / 68,789.31-103,166.64-26,654.91

Finding the Fourth Proportional to 68,789.31, 103,166.64 and 26,654.91

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Solution

The fourth proportional to 68,789.31, 103,166.64 and 26,654.91 is: 39,975.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,789.31 : 103,166.64 = 26,654.91 : x
  2. Step 2: Convert to fraction form
    68,789.31/103,166.64 = 26,654.91/x
  3. Step 3: Cross multiply
    68,789.31x = 103,166.64 × 26,654.91
  4. Step 4: Simplify right side
    68,789.31x = 2,749,897,504.20
  5. Step 5: Solve for x
    x = 2,749,897,504.20/68,789.31
  6. Step 6: Final answer
    x = 39,975.65

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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.