Home / 87,950.20-131,939.31-31,784.62

Finding the Fourth Proportional to 87,950.20, 131,939.31 and 31,784.62

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Solution

The fourth proportional to 87,950.20, 131,939.31 and 31,784.62 is: 47,681.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,950.20 : 131,939.31 = 31,784.62 : x
  2. Step 2: Convert to fraction form
    87,950.20/131,939.31 = 31,784.62/x
  3. Step 3: Cross multiply
    87,950.20x = 131,939.31 × 31,784.62
  4. Step 4: Simplify right side
    87,950.20x = 4,193,640,831.41
  5. Step 5: Solve for x
    x = 4,193,640,831.41/87,950.20
  6. Step 6: Final answer
    x = 47,681.99

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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.