Home / 54,846.90-82,279.05-21,111.74

Finding the Fourth Proportional to 54,846.90, 82,279.05 and 21,111.74

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Solution

The fourth proportional to 54,846.90, 82,279.05 and 21,111.74 is: 31,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,846.90 : 82,279.05 = 21,111.74 : x
  2. Step 2: Convert to fraction form
    54,846.90/82,279.05 = 21,111.74/x
  3. Step 3: Cross multiply
    54,846.90x = 82,279.05 × 21,111.74
  4. Step 4: Simplify right side
    54,846.90x = 1,737,053,729.03
  5. Step 5: Solve for x
    x = 1,737,053,729.03/54,846.90
  6. Step 6: Final answer
    x = 31,670.96

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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.