Home / 87,950.71-131,946.56-28,782.79

Finding the Fourth Proportional to 87,950.71, 131,946.56 and 28,782.79

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Solution

The fourth proportional to 87,950.71, 131,946.56 and 28,782.79 is: 43,180.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,950.71 : 131,946.56 = 28,782.79 : x
  2. Step 2: Convert to fraction form
    87,950.71/131,946.56 = 28,782.79/x
  3. Step 3: Cross multiply
    87,950.71x = 131,946.56 × 28,782.79
  4. Step 4: Simplify right side
    87,950.71x = 3,797,789,467.97
  5. Step 5: Solve for x
    x = 3,797,789,467.97/87,950.71
  6. Step 6: Final answer
    x = 43,180.89

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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.