Home / 54,992.28-82,488.39-19,931.88

Finding the Fourth Proportional to 54,992.28, 82,488.39 and 19,931.88

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Solution

The fourth proportional to 54,992.28, 82,488.39 and 19,931.88 is: 29,897.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,992.28 : 82,488.39 = 19,931.88 : x
  2. Step 2: Convert to fraction form
    54,992.28/82,488.39 = 19,931.88/x
  3. Step 3: Cross multiply
    54,992.28x = 82,488.39 × 19,931.88
  4. Step 4: Simplify right side
    54,992.28x = 1,644,148,690.87
  5. Step 5: Solve for x
    x = 1,644,148,690.87/54,992.28
  6. Step 6: Final answer
    x = 29,897.81

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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.