Home / 54,853.98-82,231.71-19,785.43

Finding the Fourth Proportional to 54,853.98, 82,231.71 and 19,785.43

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Solution

The fourth proportional to 54,853.98, 82,231.71 and 19,785.43 is: 29,660.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,853.98 : 82,231.71 = 19,785.43 : x
  2. Step 2: Convert to fraction form
    54,853.98/82,231.71 = 19,785.43/x
  3. Step 3: Cross multiply
    54,853.98x = 82,231.71 × 19,785.43
  4. Step 4: Simplify right side
    54,853.98x = 1,626,989,741.99
  5. Step 5: Solve for x
    x = 1,626,989,741.99/54,853.98
  6. Step 6: Final answer
    x = 29,660.38

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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.