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Finding the Fourth Proportional to 68,500.96, 102,738.48 and 21,754.24

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Solution

The fourth proportional to 68,500.96, 102,738.48 and 21,754.24 is: 32,627.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,500.96 : 102,738.48 = 21,754.24 : x
  2. Step 2: Convert to fraction form
    68,500.96/102,738.48 = 21,754.24/x
  3. Step 3: Cross multiply
    68,500.96x = 102,738.48 × 21,754.24
  4. Step 4: Simplify right side
    68,500.96x = 2,234,997,551.16
  5. Step 5: Solve for x
    x = 2,234,997,551.16/68,500.96
  6. Step 6: Final answer
    x = 32,627.24

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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.