Home / 68,080.26-102,120.42-21,336.78

Finding the Fourth Proportional to 68,080.26, 102,120.42 and 21,336.78

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Solution

The fourth proportional to 68,080.26, 102,120.42 and 21,336.78 is: 32,005.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,080.26 : 102,120.42 = 21,336.78 : x
  2. Step 2: Convert to fraction form
    68,080.26/102,120.42 = 21,336.78/x
  3. Step 3: Cross multiply
    68,080.26x = 102,120.42 × 21,336.78
  4. Step 4: Simplify right side
    68,080.26x = 2,178,920,935.05
  5. Step 5: Solve for x
    x = 2,178,920,935.05/68,080.26
  6. Step 6: Final answer
    x = 32,005.18

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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.