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Finding the Fourth Proportional to 68,266.60, 102,410.46 and 28,820.20

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Solution

The fourth proportional to 68,266.60, 102,410.46 and 28,820.20 is: 43,234.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,266.60 : 102,410.46 = 28,820.20 : x
  2. Step 2: Convert to fraction form
    68,266.60/102,410.46 = 28,820.20/x
  3. Step 3: Cross multiply
    68,266.60x = 102,410.46 × 28,820.20
  4. Step 4: Simplify right side
    68,266.60x = 2,951,489,939.29
  5. Step 5: Solve for x
    x = 2,951,489,939.29/68,266.60
  6. Step 6: Final answer
    x = 43,234.76

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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.