Home / 82,107.20-123,173.60-26,685.76

Finding the Fourth Proportional to 82,107.20, 123,173.60 and 26,685.76

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Solution

The fourth proportional to 82,107.20, 123,173.60 and 26,685.76 is: 40,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,107.20 : 123,173.60 = 26,685.76 : x
  2. Step 2: Convert to fraction form
    82,107.20/123,173.60 = 26,685.76/x
  3. Step 3: Cross multiply
    82,107.20x = 123,173.60 × 26,685.76
  4. Step 4: Simplify right side
    82,107.20x = 3,286,981,127.94
  5. Step 5: Solve for x
    x = 3,286,981,127.94/82,107.20
  6. Step 6: Final answer
    x = 40,032.80

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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.