Home / 213,309.14-319,982.85-55,538.96

Finding the Fourth Proportional to 213,309.14, 319,982.85 and 55,538.96

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Solution

The fourth proportional to 213,309.14, 319,982.85 and 55,538.96 is: 83,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,309.14 : 319,982.85 = 55,538.96 : x
  2. Step 2: Convert to fraction form
    213,309.14/319,982.85 = 55,538.96/x
  3. Step 3: Cross multiply
    213,309.14x = 319,982.85 × 55,538.96
  4. Step 4: Simplify right side
    213,309.14x = 17,771,515,506.79
  5. Step 5: Solve for x
    x = 17,771,515,506.79/213,309.14
  6. Step 6: Final answer
    x = 83,313.43

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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.