Home / 87,313.20-131,034.60-34,760.40

Finding the Fourth Proportional to 87,313.20, 131,034.60 and 34,760.40

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Solution

The fourth proportional to 87,313.20, 131,034.60 and 34,760.40 is: 52,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,313.20 : 131,034.60 = 34,760.40 : x
  2. Step 2: Convert to fraction form
    87,313.20/131,034.60 = 34,760.40/x
  3. Step 3: Cross multiply
    87,313.20x = 131,034.60 × 34,760.40
  4. Step 4: Simplify right side
    87,313.20x = 4,554,815,109.84
  5. Step 5: Solve for x
    x = 4,554,815,109.84/87,313.20
  6. Step 6: Final answer
    x = 52,166.40

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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.