Home / 68,619.44-102,844.38-40,511

Finding the Fourth Proportional to 68,619.44, 102,844.38 and 40,511

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Solution

The fourth proportional to 68,619.44, 102,844.38 and 40,511 is: 60,716.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,619.44 : 102,844.38 = 40,511 : x
  2. Step 2: Convert to fraction form
    68,619.44/102,844.38 = 40,511/x
  3. Step 3: Cross multiply
    68,619.44x = 102,844.38 × 40,511
  4. Step 4: Simplify right side
    68,619.44x = 4,166,328,678.18
  5. Step 5: Solve for x
    x = 4,166,328,678.18/68,619.44
  6. Step 6: Final answer
    x = 60,716.45

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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.