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Finding the Fourth Proportional to 68,804, 103,210.86 and 27,251

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Solution

The fourth proportional to 68,804, 103,210.86 and 27,251 is: 40,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,804 : 103,210.86 = 27,251 : x
  2. Step 2: Convert to fraction form
    68,804/103,210.86 = 27,251/x
  3. Step 3: Cross multiply
    68,804x = 103,210.86 × 27,251
  4. Step 4: Simplify right side
    68,804x = 2,812,599,145.86
  5. Step 5: Solve for x
    x = 2,812,599,145.86/68,804
  6. Step 6: Final answer
    x = 40,878.42

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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.