Home / 68,047.90-102,005.33-30,617.39

Finding the Fourth Proportional to 68,047.90, 102,005.33 and 30,617.39

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Solution

The fourth proportional to 68,047.90, 102,005.33 and 30,617.39 is: 45,896.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,047.90 : 102,005.33 = 30,617.39 : x
  2. Step 2: Convert to fraction form
    68,047.90/102,005.33 = 30,617.39/x
  3. Step 3: Cross multiply
    68,047.90x = 102,005.33 × 30,617.39
  4. Step 4: Simplify right side
    68,047.90x = 3,123,137,072.62
  5. Step 5: Solve for x
    x = 3,123,137,072.62/68,047.90
  6. Step 6: Final answer
    x = 45,896.16

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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.