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Finding the Fourth Proportional to 82,404.90, 123,600.15 and 27,000.90

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Solution

The fourth proportional to 82,404.90, 123,600.15 and 27,000.90 is: 40,498.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,404.90 : 123,600.15 = 27,000.90 : x
  2. Step 2: Convert to fraction form
    82,404.90/123,600.15 = 27,000.90/x
  3. Step 3: Cross multiply
    82,404.90x = 123,600.15 × 27,000.90
  4. Step 4: Simplify right side
    82,404.90x = 3,337,315,290.14
  5. Step 5: Solve for x
    x = 3,337,315,290.14/82,404.90
  6. Step 6: Final answer
    x = 40,498.99

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1.5x scale

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.