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Finding the Fourth Proportional to 68,226.92, 102,360.12 and 28,238.51

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Solution

The fourth proportional to 68,226.92, 102,360.12 and 28,238.51 is: 42,365.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,226.92 : 102,360.12 = 28,238.51 : x
  2. Step 2: Convert to fraction form
    68,226.92/102,360.12 = 28,238.51/x
  3. Step 3: Cross multiply
    68,226.92x = 102,360.12 × 28,238.51
  4. Step 4: Simplify right side
    68,226.92x = 2,890,497,317.99
  5. Step 5: Solve for x
    x = 2,890,497,317.99/68,226.92
  6. Step 6: Final answer
    x = 42,365.94

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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.