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Finding the Fourth Proportional to 68,662.50, 94,755.72 and 38,854.50

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Solution

The fourth proportional to 68,662.50, 94,755.72 and 38,854.50 is: 53,620.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,662.50 : 94,755.72 = 38,854.50 : x
  2. Step 2: Convert to fraction form
    68,662.50/94,755.72 = 38,854.50/x
  3. Step 3: Cross multiply
    68,662.50x = 94,755.72 × 38,854.50
  4. Step 4: Simplify right side
    68,662.50x = 3,681,686,122.74
  5. Step 5: Solve for x
    x = 3,681,686,122.74/68,662.50
  6. Step 6: Final answer
    x = 53,620.04

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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.