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Finding the Fourth Proportional to 82,118.52, 113,354.19 and 63,933.21

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Solution

The fourth proportional to 82,118.52, 113,354.19 and 63,933.21 is: 88,251.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,118.52 : 113,354.19 = 63,933.21 : x
  2. Step 2: Convert to fraction form
    82,118.52/113,354.19 = 63,933.21/x
  3. Step 3: Cross multiply
    82,118.52x = 113,354.19 × 63,933.21
  4. Step 4: Simplify right side
    82,118.52x = 7,247,097,233.65
  5. Step 5: Solve for x
    x = 7,247,097,233.65/82,118.52
  6. Step 6: Final answer
    x = 88,251.68

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1.5x scale

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.