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Finding the Fourth Proportional to 87,000.69, 130,520.48 and 27,839.91

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Solution

The fourth proportional to 87,000.69, 130,520.48 and 27,839.91 is: 41,766.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,000.69 : 130,520.48 = 27,839.91 : x
  2. Step 2: Convert to fraction form
    87,000.69/130,520.48 = 27,839.91/x
  3. Step 3: Cross multiply
    87,000.69x = 130,520.48 × 27,839.91
  4. Step 4: Simplify right side
    87,000.69x = 3,633,678,416.36
  5. Step 5: Solve for x
    x = 3,633,678,416.36/87,000.69
  6. Step 6: Final answer
    x = 41,766.09

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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.