Home / 68,844.45-103,254.75-18,912.66

Finding the Fourth Proportional to 68,844.45, 103,254.75 and 18,912.66

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Solution

The fourth proportional to 68,844.45, 103,254.75 and 18,912.66 is: 28,365.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,844.45 : 103,254.75 = 18,912.66 : x
  2. Step 2: Convert to fraction form
    68,844.45/103,254.75 = 18,912.66/x
  3. Step 3: Cross multiply
    68,844.45x = 103,254.75 × 18,912.66
  4. Step 4: Simplify right side
    68,844.45x = 1,952,821,980.14
  5. Step 5: Solve for x
    x = 1,952,821,980.14/68,844.45
  6. Step 6: Final answer
    x = 28,365.71

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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.