Home / 87,749.71-131,351.58-47,668.48

Finding the Fourth Proportional to 87,749.71, 131,351.58 and 47,668.48

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Solution

The fourth proportional to 87,749.71, 131,351.58 and 47,668.48 is: 71,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,749.71 : 131,351.58 = 47,668.48 : x
  2. Step 2: Convert to fraction form
    87,749.71/131,351.58 = 47,668.48/x
  3. Step 3: Cross multiply
    87,749.71x = 131,351.58 × 47,668.48
  4. Step 4: Simplify right side
    87,749.71x = 6,261,330,164.20
  5. Step 5: Solve for x
    x = 6,261,330,164.20/87,749.71
  6. Step 6: Final answer
    x = 71,354.43

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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.