Home / 87,814.45-131,721.13-28,650.16

Finding the Fourth Proportional to 87,814.45, 131,721.13 and 28,650.16

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Solution

The fourth proportional to 87,814.45, 131,721.13 and 28,650.16 is: 42,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,814.45 : 131,721.13 = 28,650.16 : x
  2. Step 2: Convert to fraction form
    87,814.45/131,721.13 = 28,650.16/x
  3. Step 3: Cross multiply
    87,814.45x = 131,721.13 × 28,650.16
  4. Step 4: Simplify right side
    87,814.45x = 3,773,831,449.88
  5. Step 5: Solve for x
    x = 3,773,831,449.88/87,814.45
  6. Step 6: Final answer
    x = 42,975.06

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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.