Home / 54,011.39-81,029.68-18,472.98

Finding the Fourth Proportional to 54,011.39, 81,029.68 and 18,472.98

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Solution

The fourth proportional to 54,011.39, 81,029.68 and 18,472.98 is: 27,713.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,011.39 : 81,029.68 = 18,472.98 : x
  2. Step 2: Convert to fraction form
    54,011.39/81,029.68 = 18,472.98/x
  3. Step 3: Cross multiply
    54,011.39x = 81,029.68 × 18,472.98
  4. Step 4: Simplify right side
    54,011.39x = 1,496,859,459.93
  5. Step 5: Solve for x
    x = 1,496,859,459.93/54,011.39
  6. Step 6: Final answer
    x = 27,713.78

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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.