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Finding the Fourth Proportional to 68,630.32, 102,944.40 and 21,882.88

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Solution

The fourth proportional to 68,630.32, 102,944.40 and 21,882.88 is: 32,823.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,630.32 : 102,944.40 = 21,882.88 : x
  2. Step 2: Convert to fraction form
    68,630.32/102,944.40 = 21,882.88/x
  3. Step 3: Cross multiply
    68,630.32x = 102,944.40 × 21,882.88
  4. Step 4: Simplify right side
    68,630.32x = 2,252,719,951.87
  5. Step 5: Solve for x
    x = 2,252,719,951.87/68,630.32
  6. Step 6: Final answer
    x = 32,823.98

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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.