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Finding the Fourth Proportional to 82,697.92, 124,046.91 and 20,368.42

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Solution

The fourth proportional to 82,697.92, 124,046.91 and 20,368.42 is: 30,552.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,697.92 : 124,046.91 = 20,368.42 : x
  2. Step 2: Convert to fraction form
    82,697.92/124,046.91 = 20,368.42/x
  3. Step 3: Cross multiply
    82,697.92x = 124,046.91 × 20,368.42
  4. Step 4: Simplify right side
    82,697.92x = 2,526,639,562.58
  5. Step 5: Solve for x
    x = 2,526,639,562.58/82,697.92
  6. Step 6: Final answer
    x = 30,552.64

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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.