Home / 68,619.56-102,964.57-51,974.06

Finding the Fourth Proportional to 68,619.56, 102,964.57 and 51,974.06

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Solution

The fourth proportional to 68,619.56, 102,964.57 and 51,974.06 is: 77,987.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,619.56 : 102,964.57 = 51,974.06 : x
  2. Step 2: Convert to fraction form
    68,619.56/102,964.57 = 51,974.06/x
  3. Step 3: Cross multiply
    68,619.56x = 102,964.57 × 51,974.06
  4. Step 4: Simplify right side
    68,619.56x = 5,351,486,094.30
  5. Step 5: Solve for x
    x = 5,351,486,094.30/68,619.56
  6. Step 6: Final answer
    x = 77,987.77

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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.