Home / 87,103.42-130,661.20-34,512.75

Finding the Fourth Proportional to 87,103.42, 130,661.20 and 34,512.75

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Solution

The fourth proportional to 87,103.42, 130,661.20 and 34,512.75 is: 51,771.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,103.42 : 130,661.20 = 34,512.75 : x
  2. Step 2: Convert to fraction form
    87,103.42/130,661.20 = 34,512.75/x
  3. Step 3: Cross multiply
    87,103.42x = 130,661.20 × 34,512.75
  4. Step 4: Simplify right side
    87,103.42x = 4,509,477,373.44
  5. Step 5: Solve for x
    x = 4,509,477,373.44/87,103.42
  6. Step 6: Final answer
    x = 51,771.53

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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.