Home / 68,619.80-102,939.30-29,176.60

Finding the Fourth Proportional to 68,619.80, 102,939.30 and 29,176.60

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Solution

The fourth proportional to 68,619.80, 102,939.30 and 29,176.60 is: 43,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,619.80 : 102,939.30 = 29,176.60 : x
  2. Step 2: Convert to fraction form
    68,619.80/102,939.30 = 29,176.60/x
  3. Step 3: Cross multiply
    68,619.80x = 102,939.30 × 29,176.60
  4. Step 4: Simplify right side
    68,619.80x = 3,003,418,780.38
  5. Step 5: Solve for x
    x = 3,003,418,780.38/68,619.80
  6. Step 6: Final answer
    x = 43,768.98

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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.