Home / 54,045.39-81,011.55-18,494.76

Finding the Fourth Proportional to 54,045.39, 81,011.55 and 18,494.76

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Solution

The fourth proportional to 54,045.39, 81,011.55 and 18,494.76 is: 27,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,045.39 : 81,011.55 = 18,494.76 : x
  2. Step 2: Convert to fraction form
    54,045.39/81,011.55 = 18,494.76/x
  3. Step 3: Cross multiply
    54,045.39x = 81,011.55 × 18,494.76
  4. Step 4: Simplify right side
    54,045.39x = 1,498,289,174.48
  5. Step 5: Solve for x
    x = 1,498,289,174.48/54,045.39
  6. Step 6: Final answer
    x = 27,722.79

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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.