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Finding the Fourth Proportional to 68,810.50, 103,233.09 and 19,562.50

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Solution

The fourth proportional to 68,810.50, 103,233.09 and 19,562.50 is: 29,348.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,810.50 : 103,233.09 = 19,562.50 : x
  2. Step 2: Convert to fraction form
    68,810.50/103,233.09 = 19,562.50/x
  3. Step 3: Cross multiply
    68,810.50x = 103,233.09 × 19,562.50
  4. Step 4: Simplify right side
    68,810.50x = 2,019,497,323.13
  5. Step 5: Solve for x
    x = 2,019,497,323.13/68,810.50
  6. Step 6: Final answer
    x = 29,348.68

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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.