Home / 56,429.43-84,584.49-20,867.91

Finding the Fourth Proportional to 56,429.43, 84,584.49 and 20,867.91

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Solution

The fourth proportional to 56,429.43, 84,584.49 and 20,867.91 is: 31,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,429.43 : 84,584.49 = 20,867.91 : x
  2. Step 2: Convert to fraction form
    56,429.43/84,584.49 = 20,867.91/x
  3. Step 3: Cross multiply
    56,429.43x = 84,584.49 × 20,867.91
  4. Step 4: Simplify right side
    56,429.43x = 1,765,101,524.72
  5. Step 5: Solve for x
    x = 1,765,101,524.72/56,429.43
  6. Step 6: Final answer
    x = 31,279.80

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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.