Home / 68,442.78-102,728.73-35,186.16

Finding the Fourth Proportional to 68,442.78, 102,728.73 and 35,186.16

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Solution

The fourth proportional to 68,442.78, 102,728.73 and 35,186.16 is: 52,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,442.78 : 102,728.73 = 35,186.16 : x
  2. Step 2: Convert to fraction form
    68,442.78/102,728.73 = 35,186.16/x
  3. Step 3: Cross multiply
    68,442.78x = 102,728.73 × 35,186.16
  4. Step 4: Simplify right side
    68,442.78x = 3,614,629,530.38
  5. Step 5: Solve for x
    x = 3,614,629,530.38/68,442.78
  6. Step 6: Final answer
    x = 52,812.43

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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.