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Finding the Fourth Proportional to 68,872.60, 95,036.88 and 38,661.25

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Solution

The fourth proportional to 68,872.60, 95,036.88 and 38,661.25 is: 53,348.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,872.60 : 95,036.88 = 38,661.25 : x
  2. Step 2: Convert to fraction form
    68,872.60/95,036.88 = 38,661.25/x
  3. Step 3: Cross multiply
    68,872.60x = 95,036.88 × 38,661.25
  4. Step 4: Simplify right side
    68,872.60x = 3,674,244,101.72
  5. Step 5: Solve for x
    x = 3,674,244,101.72/68,872.60
  6. Step 6: Final answer
    x = 53,348.42

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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.