Home / 82,115.09-123,162.04-25,960.91

Finding the Fourth Proportional to 82,115.09, 123,162.04 and 25,960.91

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Solution

The fourth proportional to 82,115.09, 123,162.04 and 25,960.91 is: 38,938.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,115.09 : 123,162.04 = 25,960.91 : x
  2. Step 2: Convert to fraction form
    82,115.09/123,162.04 = 25,960.91/x
  3. Step 3: Cross multiply
    82,115.09x = 123,162.04 × 25,960.91
  4. Step 4: Simplify right side
    82,115.09x = 3,197,398,125.51
  5. Step 5: Solve for x
    x = 3,197,398,125.51/82,115.09
  6. Step 6: Final answer
    x = 38,938.01

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Similar ratio
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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.