Home / 87,871.57-131,811-25,542.07

Finding the Fourth Proportional to 87,871.57, 131,811 and 25,542.07

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Solution

The fourth proportional to 87,871.57, 131,811 and 25,542.07 is: 38,314.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,871.57 : 131,811 = 25,542.07 : x
  2. Step 2: Convert to fraction form
    87,871.57/131,811 = 25,542.07/x
  3. Step 3: Cross multiply
    87,871.57x = 131,811 × 25,542.07
  4. Step 4: Simplify right side
    87,871.57x = 3,366,725,788.77
  5. Step 5: Solve for x
    x = 3,366,725,788.77/87,871.57
  6. Step 6: Final answer
    x = 38,314.16

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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.