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Finding the Fourth Proportional to 68,240.10, 102,371.10 and 28,803.03

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Solution

The fourth proportional to 68,240.10, 102,371.10 and 28,803.03 is: 43,209.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,240.10 : 102,371.10 = 28,803.03 : x
  2. Step 2: Convert to fraction form
    68,240.10/102,371.10 = 28,803.03/x
  3. Step 3: Cross multiply
    68,240.10x = 102,371.10 × 28,803.03
  4. Step 4: Simplify right side
    68,240.10x = 2,948,597,864.43
  5. Step 5: Solve for x
    x = 2,948,597,864.43/68,240.10
  6. Step 6: Final answer
    x = 43,209.17

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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.