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Finding the Fourth Proportional to 87,119.88, 130,676.94 and 37,871.88

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Solution

The fourth proportional to 87,119.88, 130,676.94 and 37,871.88 is: 56,806.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,119.88 : 130,676.94 = 37,871.88 : x
  2. Step 2: Convert to fraction form
    87,119.88/130,676.94 = 37,871.88/x
  3. Step 3: Cross multiply
    87,119.88x = 130,676.94 × 37,871.88
  4. Step 4: Simplify right side
    87,119.88x = 4,948,981,390.45
  5. Step 5: Solve for x
    x = 4,948,981,390.45/87,119.88
  6. Step 6: Final answer
    x = 56,806.57

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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.