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Finding the Fourth Proportional to 68,003.65, 102,005.32 and 18,083.76

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Solution

The fourth proportional to 68,003.65, 102,005.32 and 18,083.76 is: 27,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,003.65 : 102,005.32 = 18,083.76 : x
  2. Step 2: Convert to fraction form
    68,003.65/102,005.32 = 18,083.76/x
  3. Step 3: Cross multiply
    68,003.65x = 102,005.32 × 18,083.76
  4. Step 4: Simplify right side
    68,003.65x = 1,844,639,725.60
  5. Step 5: Solve for x
    x = 1,844,639,725.60/68,003.65
  6. Step 6: Final answer
    x = 27,125.60

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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.