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Finding the Fourth Proportional to 68,248.54, 102,373.08 and 20,863.46

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Solution

The fourth proportional to 68,248.54, 102,373.08 and 20,863.46 is: 31,295.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,248.54 : 102,373.08 = 20,863.46 : x
  2. Step 2: Convert to fraction form
    68,248.54/102,373.08 = 20,863.46/x
  3. Step 3: Cross multiply
    68,248.54x = 102,373.08 × 20,863.46
  4. Step 4: Simplify right side
    68,248.54x = 2,135,856,378.86
  5. Step 5: Solve for x
    x = 2,135,856,378.86/68,248.54
  6. Step 6: Final answer
    x = 31,295.27

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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.