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Finding the Fourth Proportional to 68,083.26, 102,124.92 and 21,339.78

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Solution

The fourth proportional to 68,083.26, 102,124.92 and 21,339.78 is: 32,009.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,083.26 : 102,124.92 = 21,339.78 : x
  2. Step 2: Convert to fraction form
    68,083.26/102,124.92 = 21,339.78/x
  3. Step 3: Cross multiply
    68,083.26x = 102,124.92 × 21,339.78
  4. Step 4: Simplify right side
    68,083.26x = 2,179,323,325.32
  5. Step 5: Solve for x
    x = 2,179,323,325.32/68,083.26
  6. Step 6: Final answer
    x = 32,009.68

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1.5x scale

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.