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Finding the Fourth Proportional to 68,995.78, 103,496.10 and 26,879.02

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Solution

The fourth proportional to 68,995.78, 103,496.10 and 26,879.02 is: 40,319.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,995.78 : 103,496.10 = 26,879.02 : x
  2. Step 2: Convert to fraction form
    68,995.78/103,496.10 = 26,879.02/x
  3. Step 3: Cross multiply
    68,995.78x = 103,496.10 × 26,879.02
  4. Step 4: Simplify right side
    68,995.78x = 2,781,873,741.82
  5. Step 5: Solve for x
    x = 2,781,873,741.82/68,995.78
  6. Step 6: Final answer
    x = 40,319.48

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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.