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Finding the Fourth Proportional to 87,361.26, 130,964.30 and 34,040.88

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Solution

The fourth proportional to 87,361.26, 130,964.30 and 34,040.88 is: 51,031.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,361.26 : 130,964.30 = 34,040.88 : x
  2. Step 2: Convert to fraction form
    87,361.26/130,964.30 = 34,040.88/x
  3. Step 3: Cross multiply
    87,361.26x = 130,964.30 × 34,040.88
  4. Step 4: Simplify right side
    87,361.26x = 4,458,140,020.58
  5. Step 5: Solve for x
    x = 4,458,140,020.58/87,361.26
  6. Step 6: Final answer
    x = 51,031.09

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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.