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Finding the Fourth Proportional to 68,968.80, 95,173.38 and 38,755.38

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Solution

The fourth proportional to 68,968.80, 95,173.38 and 38,755.38 is: 53,480.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,968.80 : 95,173.38 = 38,755.38 : x
  2. Step 2: Convert to fraction form
    68,968.80/95,173.38 = 38,755.38/x
  3. Step 3: Cross multiply
    68,968.80x = 95,173.38 × 38,755.38
  4. Step 4: Simplify right side
    68,968.80x = 3,688,480,507.78
  5. Step 5: Solve for x
    x = 3,688,480,507.78/68,968.80
  6. Step 6: Final answer
    x = 53,480.42

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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.