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Finding the Fourth Proportional to 87,308.17, 130,986.43 and 34,754.56

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Solution

The fourth proportional to 87,308.17, 130,986.43 and 34,754.56 is: 52,141.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,308.17 : 130,986.43 = 34,754.56 : x
  2. Step 2: Convert to fraction form
    87,308.17/130,986.43 = 34,754.56/x
  3. Step 3: Cross multiply
    87,308.17x = 130,986.43 × 34,754.56
  4. Step 4: Simplify right side
    87,308.17x = 4,552,375,740.62
  5. Step 5: Solve for x
    x = 4,552,375,740.62/87,308.17
  6. Step 6: Final answer
    x = 52,141.46

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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.