Home / 215,080.56-322,619.76-55,155.78

Finding the Fourth Proportional to 215,080.56, 322,619.76 and 55,155.78

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Solution

The fourth proportional to 215,080.56, 322,619.76 and 55,155.78 is: 82,733.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,080.56 : 322,619.76 = 55,155.78 : x
  2. Step 2: Convert to fraction form
    215,080.56/322,619.76 = 55,155.78/x
  3. Step 3: Cross multiply
    215,080.56x = 322,619.76 × 55,155.78
  4. Step 4: Simplify right side
    215,080.56x = 17,794,344,506.21
  5. Step 5: Solve for x
    x = 17,794,344,506.21/215,080.56
  6. Step 6: Final answer
    x = 82,733.39

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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.