Home / 68,215.52-102,313.56-21,467.18

Finding the Fourth Proportional to 68,215.52, 102,313.56 and 21,467.18

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Solution

The fourth proportional to 68,215.52, 102,313.56 and 21,467.18 is: 32,197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,215.52 : 102,313.56 = 21,467.18 : x
  2. Step 2: Convert to fraction form
    68,215.52/102,313.56 = 21,467.18/x
  3. Step 3: Cross multiply
    68,215.52x = 102,313.56 × 21,467.18
  4. Step 4: Simplify right side
    68,215.52x = 2,196,383,608.96
  5. Step 5: Solve for x
    x = 2,196,383,608.96/68,215.52
  6. Step 6: Final answer
    x = 32,197.71

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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.