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Finding the Fourth Proportional to 68,367.57, 94,333.14 and 39,290.31

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Solution

The fourth proportional to 68,367.57, 94,333.14 and 39,290.31 is: 54,212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,367.57 : 94,333.14 = 39,290.31 : x
  2. Step 2: Convert to fraction form
    68,367.57/94,333.14 = 39,290.31/x
  3. Step 3: Cross multiply
    68,367.57x = 94,333.14 × 39,290.31
  4. Step 4: Simplify right side
    68,367.57x = 3,706,378,313.87
  5. Step 5: Solve for x
    x = 3,706,378,313.87/68,367.57
  6. Step 6: Final answer
    x = 54,212.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.