Home / 54,721.68-82,086.57-19,661.64

Finding the Fourth Proportional to 54,721.68, 82,086.57 and 19,661.64

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Solution

The fourth proportional to 54,721.68, 82,086.57 and 19,661.64 is: 29,493.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,721.68 : 82,086.57 = 19,661.64 : x
  2. Step 2: Convert to fraction form
    54,721.68/82,086.57 = 19,661.64/x
  3. Step 3: Cross multiply
    54,721.68x = 82,086.57 × 19,661.64
  4. Step 4: Simplify right side
    54,721.68x = 1,613,956,588.17
  5. Step 5: Solve for x
    x = 1,613,956,588.17/54,721.68
  6. Step 6: Final answer
    x = 29,493.92

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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.