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Finding the Fourth Proportional to 68,499.75, 102,780.41 and 43,533.33

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Solution

The fourth proportional to 68,499.75, 102,780.41 and 43,533.33 is: 65,319.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,499.75 : 102,780.41 = 43,533.33 : x
  2. Step 2: Convert to fraction form
    68,499.75/102,780.41 = 43,533.33/x
  3. Step 3: Cross multiply
    68,499.75x = 102,780.41 × 43,533.33
  4. Step 4: Simplify right side
    68,499.75x = 4,474,373,288.40
  5. Step 5: Solve for x
    x = 4,474,373,288.40/68,499.75
  6. Step 6: Final answer
    x = 65,319.56

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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.