Home / 77,716.91-116,562.94-27,787.70

Finding the Fourth Proportional to 77,716.91, 116,562.94 and 27,787.70

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Solution

The fourth proportional to 77,716.91, 116,562.94 and 27,787.70 is: 41,677.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,716.91 : 116,562.94 = 27,787.70 : x
  2. Step 2: Convert to fraction form
    77,716.91/116,562.94 = 27,787.70/x
  3. Step 3: Cross multiply
    77,716.91x = 116,562.94 × 27,787.70
  4. Step 4: Simplify right side
    77,716.91x = 3,239,016,007.84
  5. Step 5: Solve for x
    x = 3,239,016,007.84/77,716.91
  6. Step 6: Final answer
    x = 41,677.11

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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.