Home / 87,334.75-130,997.53-28,170.43

Finding the Fourth Proportional to 87,334.75, 130,997.53 and 28,170.43

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Solution

The fourth proportional to 87,334.75, 130,997.53 and 28,170.43 is: 42,254.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,334.75 : 130,997.53 = 28,170.43 : x
  2. Step 2: Convert to fraction form
    87,334.75/130,997.53 = 28,170.43/x
  3. Step 3: Cross multiply
    87,334.75x = 130,997.53 × 28,170.43
  4. Step 4: Simplify right side
    87,334.75x = 3,690,256,749.04
  5. Step 5: Solve for x
    x = 3,690,256,749.04/87,334.75
  6. Step 6: Final answer
    x = 42,254.16

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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.