Home / 87,668.20-131,453.70-37,739.80

Finding the Fourth Proportional to 87,668.20, 131,453.70 and 37,739.80

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Solution

The fourth proportional to 87,668.20, 131,453.70 and 37,739.80 is: 56,588.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,668.20 : 131,453.70 = 37,739.80 : x
  2. Step 2: Convert to fraction form
    87,668.20/131,453.70 = 37,739.80/x
  3. Step 3: Cross multiply
    87,668.20x = 131,453.70 × 37,739.80
  4. Step 4: Simplify right side
    87,668.20x = 4,961,036,347.26
  5. Step 5: Solve for x
    x = 4,961,036,347.26/87,668.20
  6. Step 6: Final answer
    x = 56,588.78

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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.