Home / 56,286.44-84,418.14-21,206.76

Finding the Fourth Proportional to 56,286.44, 84,418.14 and 21,206.76

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Solution

The fourth proportional to 56,286.44, 84,418.14 and 21,206.76 is: 31,805.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,286.44 : 84,418.14 = 21,206.76 : x
  2. Step 2: Convert to fraction form
    56,286.44/84,418.14 = 21,206.76/x
  3. Step 3: Cross multiply
    56,286.44x = 84,418.14 × 21,206.76
  4. Step 4: Simplify right side
    56,286.44x = 1,790,235,234.63
  5. Step 5: Solve for x
    x = 1,790,235,234.63/56,286.44
  6. Step 6: Final answer
    x = 31,805.80

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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.