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Finding the Fourth Proportional to 69,287.45, 103,671.67 and 49,343.05

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Solution

The fourth proportional to 69,287.45, 103,671.67 and 49,343.05 is: 73,829.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,287.45 : 103,671.67 = 49,343.05 : x
  2. Step 2: Convert to fraction form
    69,287.45/103,671.67 = 49,343.05/x
  3. Step 3: Cross multiply
    69,287.45x = 103,671.67 × 49,343.05
  4. Step 4: Simplify right side
    69,287.45x = 5,115,476,396.39
  5. Step 5: Solve for x
    x = 5,115,476,396.39/69,287.45
  6. Step 6: Final answer
    x = 73,829.77

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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.