Home / 68,896.42-103,345.19-18,979.27

Finding the Fourth Proportional to 68,896.42, 103,345.19 and 18,979.27

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Solution

The fourth proportional to 68,896.42, 103,345.19 and 18,979.27 is: 28,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,896.42 : 103,345.19 = 18,979.27 : x
  2. Step 2: Convert to fraction form
    68,896.42/103,345.19 = 18,979.27/x
  3. Step 3: Cross multiply
    68,896.42x = 103,345.19 × 18,979.27
  4. Step 4: Simplify right side
    68,896.42x = 1,961,416,264.21
  5. Step 5: Solve for x
    x = 1,961,416,264.21/68,896.42
  6. Step 6: Final answer
    x = 28,469.06

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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.