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Finding the Fourth Proportional to 87,360.26, 130,962.81 and 34,039.88

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Solution

The fourth proportional to 87,360.26, 130,962.81 and 34,039.88 is: 51,029.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,360.26 : 130,962.81 = 34,039.88 : x
  2. Step 2: Convert to fraction form
    87,360.26/130,962.81 = 34,039.88/x
  3. Step 3: Cross multiply
    87,360.26x = 130,962.81 × 34,039.88
  4. Step 4: Simplify right side
    87,360.26x = 4,457,958,336.86
  5. Step 5: Solve for x
    x = 4,457,958,336.86/87,360.26
  6. Step 6: Final answer
    x = 51,029.59

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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.