Home / 82,167.20-123,090.90-54,002.30

Finding the Fourth Proportional to 82,167.20, 123,090.90 and 54,002.30

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Solution

The fourth proportional to 82,167.20, 123,090.90 and 54,002.30 is: 80,898.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,167.20 : 123,090.90 = 54,002.30 : x
  2. Step 2: Convert to fraction form
    82,167.20/123,090.90 = 54,002.30/x
  3. Step 3: Cross multiply
    82,167.20x = 123,090.90 × 54,002.30
  4. Step 4: Simplify right side
    82,167.20x = 6,647,191,709.07
  5. Step 5: Solve for x
    x = 6,647,191,709.07/82,167.20
  6. Step 6: Final answer
    x = 80,898.36

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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.