Home / 68,639.72-102,949.84-26,539.64

Finding the Fourth Proportional to 68,639.72, 102,949.84 and 26,539.64

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Solution

The fourth proportional to 68,639.72, 102,949.84 and 26,539.64 is: 39,805.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,639.72 : 102,949.84 = 26,539.64 : x
  2. Step 2: Convert to fraction form
    68,639.72/102,949.84 = 26,539.64/x
  3. Step 3: Cross multiply
    68,639.72x = 102,949.84 × 26,539.64
  4. Step 4: Simplify right side
    68,639.72x = 2,732,251,691.66
  5. Step 5: Solve for x
    x = 2,732,251,691.66/68,639.72
  6. Step 6: Final answer
    x = 39,805.69

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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.