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Finding the Fourth Proportional to 68,896.36, 103,324 and 26,782.98

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Solution

The fourth proportional to 68,896.36, 103,324 and 26,782.98 is: 40,166.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,896.36 : 103,324 = 26,782.98 : x
  2. Step 2: Convert to fraction form
    68,896.36/103,324 = 26,782.98/x
  3. Step 3: Cross multiply
    68,896.36x = 103,324 × 26,782.98
  4. Step 4: Simplify right side
    68,896.36x = 2,767,324,625.52
  5. Step 5: Solve for x
    x = 2,767,324,625.52/68,896.36
  6. Step 6: Final answer
    x = 40,166.49

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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.