Home / 82,636.12-114,092.76-63,481.78

Finding the Fourth Proportional to 82,636.12, 114,092.76 and 63,481.78

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Solution

The fourth proportional to 82,636.12, 114,092.76 and 63,481.78 is: 87,647.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,636.12 : 114,092.76 = 63,481.78 : x
  2. Step 2: Convert to fraction form
    82,636.12/114,092.76 = 63,481.78/x
  3. Step 3: Cross multiply
    82,636.12x = 114,092.76 × 63,481.78
  4. Step 4: Simplify right side
    82,636.12x = 7,242,811,489.91
  5. Step 5: Solve for x
    x = 7,242,811,489.91/82,636.12
  6. Step 6: Final answer
    x = 87,647.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.