Home / 213,529.56-320,288.10-55,758.03

Finding the Fourth Proportional to 213,529.56, 320,288.10 and 55,758.03

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Solution

The fourth proportional to 213,529.56, 320,288.10 and 55,758.03 is: 83,635.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,529.56 : 320,288.10 = 55,758.03 : x
  2. Step 2: Convert to fraction form
    213,529.56/320,288.10 = 55,758.03/x
  3. Step 3: Cross multiply
    213,529.56x = 320,288.10 × 55,758.03
  4. Step 4: Simplify right side
    213,529.56x = 17,858,633,488.44
  5. Step 5: Solve for x
    x = 17,858,633,488.44/213,529.56
  6. Step 6: Final answer
    x = 83,635.42

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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.