Home / 90,107.84-124,343.79-49,819.25

Finding the Fourth Proportional to 90,107.84, 124,343.79 and 49,819.25

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Solution

The fourth proportional to 90,107.84, 124,343.79 and 49,819.25 is: 68,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,107.84 : 124,343.79 = 49,819.25 : x
  2. Step 2: Convert to fraction form
    90,107.84/124,343.79 = 49,819.25/x
  3. Step 3: Cross multiply
    90,107.84x = 124,343.79 × 49,819.25
  4. Step 4: Simplify right side
    90,107.84x = 6,194,713,738.24
  5. Step 5: Solve for x
    x = 6,194,713,738.24/90,107.84
  6. Step 6: Final answer
    x = 68,747.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.