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Finding the Fourth Proportional to 68,364.25, 102,533.39 and 28,949.05

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Solution

The fourth proportional to 68,364.25, 102,533.39 and 28,949.05 is: 43,418.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,364.25 : 102,533.39 = 28,949.05 : x
  2. Step 2: Convert to fraction form
    68,364.25/102,533.39 = 28,949.05/x
  3. Step 3: Cross multiply
    68,364.25x = 102,533.39 × 28,949.05
  4. Step 4: Simplify right side
    68,364.25x = 2,968,243,911.85
  5. Step 5: Solve for x
    x = 2,968,243,911.85/68,364.25
  6. Step 6: Final answer
    x = 43,418.07

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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.