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Finding the Fourth Proportional to 68,872.76, 95,037.09 and 38,661.40

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Solution

The fourth proportional to 68,872.76, 95,037.09 and 38,661.40 is: 53,348.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,872.76 : 95,037.09 = 38,661.40 : x
  2. Step 2: Convert to fraction form
    68,872.76/95,037.09 = 38,661.40/x
  3. Step 3: Cross multiply
    68,872.76x = 95,037.09 × 38,661.40
  4. Step 4: Simplify right side
    68,872.76x = 3,674,266,713.73
  5. Step 5: Solve for x
    x = 3,674,266,713.73/68,872.76
  6. Step 6: Final answer
    x = 53,348.62

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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.