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Finding the Fourth Proportional to 66,836.68, 100,216.08 and 25,286.92

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Solution

The fourth proportional to 66,836.68, 100,216.08 and 25,286.92 is: 37,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,836.68 : 100,216.08 = 25,286.92 : x
  2. Step 2: Convert to fraction form
    66,836.68/100,216.08 = 25,286.92/x
  3. Step 3: Cross multiply
    66,836.68x = 100,216.08 × 25,286.92
  4. Step 4: Simplify right side
    66,836.68x = 2,534,155,997.67
  5. Step 5: Solve for x
    x = 2,534,155,997.67/66,836.68
  6. Step 6: Final answer
    x = 37,915.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.