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Finding the Fourth Proportional to 68,651.87, 94,735.09 and 38,436.91

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Solution

The fourth proportional to 68,651.87, 94,735.09 and 38,436.91 is: 53,040.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,651.87 : 94,735.09 = 38,436.91 : x
  2. Step 2: Convert to fraction form
    68,651.87/94,735.09 = 38,436.91/x
  3. Step 3: Cross multiply
    68,651.87x = 94,735.09 × 38,436.91
  4. Step 4: Simplify right side
    68,651.87x = 3,641,324,256.06
  5. Step 5: Solve for x
    x = 3,641,324,256.06/68,651.87
  6. Step 6: Final answer
    x = 53,040.42

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1.5x scale

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.