Home / 87,727.02-131,589.30-21,166.59

Finding the Fourth Proportional to 87,727.02, 131,589.30 and 21,166.59

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Solution

The fourth proportional to 87,727.02, 131,589.30 and 21,166.59 is: 31,749.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,727.02 : 131,589.30 = 21,166.59 : x
  2. Step 2: Convert to fraction form
    87,727.02/131,589.30 = 21,166.59/x
  3. Step 3: Cross multiply
    87,727.02x = 131,589.30 × 21,166.59
  4. Step 4: Simplify right side
    87,727.02x = 2,785,296,761.49
  5. Step 5: Solve for x
    x = 2,785,296,761.49/87,727.02
  6. Step 6: Final answer
    x = 31,749.59

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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.