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Finding the Fourth Proportional to 87,513.80, 131,254.86 and 25,169

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Solution

The fourth proportional to 87,513.80, 131,254.86 and 25,169 is: 37,748.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,513.80 : 131,254.86 = 25,169 : x
  2. Step 2: Convert to fraction form
    87,513.80/131,254.86 = 25,169/x
  3. Step 3: Cross multiply
    87,513.80x = 131,254.86 × 25,169
  4. Step 4: Simplify right side
    87,513.80x = 3,303,553,571.34
  5. Step 5: Solve for x
    x = 3,303,553,571.34/87,513.80
  6. Step 6: Final answer
    x = 37,748.94

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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.