Home / 68,375.02-102,561.70-17,769.56

Finding the Fourth Proportional to 68,375.02, 102,561.70 and 17,769.56

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Solution

The fourth proportional to 68,375.02, 102,561.70 and 17,769.56 is: 26,654.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,375.02 : 102,561.70 = 17,769.56 : x
  2. Step 2: Convert to fraction form
    68,375.02/102,561.70 = 17,769.56/x
  3. Step 3: Cross multiply
    68,375.02x = 102,561.70 × 17,769.56
  4. Step 4: Simplify right side
    68,375.02x = 1,822,476,281.85
  5. Step 5: Solve for x
    x = 1,822,476,281.85/68,375.02
  6. Step 6: Final answer
    x = 26,654.12

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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.