Home / 87,435.74-131,147.12-34,857.02

Finding the Fourth Proportional to 87,435.74, 131,147.12 and 34,857.02

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Solution

The fourth proportional to 87,435.74, 131,147.12 and 34,857.02 is: 52,282.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,435.74 : 131,147.12 = 34,857.02 : x
  2. Step 2: Convert to fraction form
    87,435.74/131,147.12 = 34,857.02/x
  3. Step 3: Cross multiply
    87,435.74x = 131,147.12 × 34,857.02
  4. Step 4: Simplify right side
    87,435.74x = 4,571,397,784.78
  5. Step 5: Solve for x
    x = 4,571,397,784.78/87,435.74
  6. Step 6: Final answer
    x = 52,282.94

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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.