Home / 68,871.38-103,303.43-22,120.61

Finding the Fourth Proportional to 68,871.38, 103,303.43 and 22,120.61

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Solution

The fourth proportional to 68,871.38, 103,303.43 and 22,120.61 is: 33,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,871.38 : 103,303.43 = 22,120.61 : x
  2. Step 2: Convert to fraction form
    68,871.38/103,303.43 = 22,120.61/x
  3. Step 3: Cross multiply
    68,871.38x = 103,303.43 × 22,120.61
  4. Step 4: Simplify right side
    68,871.38x = 2,285,134,776.09
  5. Step 5: Solve for x
    x = 2,285,134,776.09/68,871.38
  6. Step 6: Final answer
    x = 33,179.74

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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.