Home / 77,787.75-116,719.73-27,871.70

Finding the Fourth Proportional to 77,787.75, 116,719.73 and 27,871.70

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Solution

The fourth proportional to 77,787.75, 116,719.73 and 27,871.70 is: 41,821.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,787.75 : 116,719.73 = 27,871.70 : x
  2. Step 2: Convert to fraction form
    77,787.75/116,719.73 = 27,871.70/x
  3. Step 3: Cross multiply
    77,787.75x = 116,719.73 × 27,871.70
  4. Step 4: Simplify right side
    77,787.75x = 3,253,176,575.68
  5. Step 5: Solve for x
    x = 3,253,176,575.68/77,787.75
  6. Step 6: Final answer
    x = 41,821.19

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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.