Home / 68,905.13-103,382.28-33,869.39

Finding the Fourth Proportional to 68,905.13, 103,382.28 and 33,869.39

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Solution

The fourth proportional to 68,905.13, 103,382.28 and 33,869.39 is: 50,816.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,905.13 : 103,382.28 = 33,869.39 : x
  2. Step 2: Convert to fraction form
    68,905.13/103,382.28 = 33,869.39/x
  3. Step 3: Cross multiply
    68,905.13x = 103,382.28 × 33,869.39
  4. Step 4: Simplify right side
    68,905.13x = 3,501,494,243.50
  5. Step 5: Solve for x
    x = 3,501,494,243.50/68,905.13
  6. Step 6: Final answer
    x = 50,816.17

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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.