Home / 87,875.94-131,786.62-31,708.74

Finding the Fourth Proportional to 87,875.94, 131,786.62 and 31,708.74

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Solution

The fourth proportional to 87,875.94, 131,786.62 and 31,708.74 is: 47,553.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,875.94 : 131,786.62 = 31,708.74 : x
  2. Step 2: Convert to fraction form
    87,875.94/131,786.62 = 31,708.74/x
  3. Step 3: Cross multiply
    87,875.94x = 131,786.62 × 31,708.74
  4. Step 4: Simplify right side
    87,875.94x = 4,178,787,669.06
  5. Step 5: Solve for x
    x = 4,178,787,669.06/87,875.94
  6. Step 6: Final answer
    x = 47,553.26

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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.