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Finding the Fourth Proportional to 68,803, 103,209.36 and 27,250

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Solution

The fourth proportional to 68,803, 103,209.36 and 27,250 is: 40,876.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,803 : 103,209.36 = 27,250 : x
  2. Step 2: Convert to fraction form
    68,803/103,209.36 = 27,250/x
  3. Step 3: Cross multiply
    68,803x = 103,209.36 × 27,250
  4. Step 4: Simplify right side
    68,803x = 2,812,455,060
  5. Step 5: Solve for x
    x = 2,812,455,060/68,803
  6. Step 6: Final answer
    x = 40,876.92

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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.