Home / 55,202.34-82,815.72-20,141.88

Finding the Fourth Proportional to 55,202.34, 82,815.72 and 20,141.88

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Solution

The fourth proportional to 55,202.34, 82,815.72 and 20,141.88 is: 30,217.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,202.34 : 82,815.72 = 20,141.88 : x
  2. Step 2: Convert to fraction form
    55,202.34/82,815.72 = 20,141.88/x
  3. Step 3: Cross multiply
    55,202.34x = 82,815.72 × 20,141.88
  4. Step 4: Simplify right side
    55,202.34x = 1,668,064,294.35
  5. Step 5: Solve for x
    x = 1,668,064,294.35/55,202.34
  6. Step 6: Final answer
    x = 30,217.28

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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.