Home / 87,634.12-131,398.64-40,189.79

Finding the Fourth Proportional to 87,634.12, 131,398.64 and 40,189.79

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Solution

The fourth proportional to 87,634.12, 131,398.64 and 40,189.79 is: 60,260.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,634.12 : 131,398.64 = 40,189.79 : x
  2. Step 2: Convert to fraction form
    87,634.12/131,398.64 = 40,189.79/x
  3. Step 3: Cross multiply
    87,634.12x = 131,398.64 × 40,189.79
  4. Step 4: Simplify right side
    87,634.12x = 5,280,883,040.66
  5. Step 5: Solve for x
    x = 5,280,883,040.66/87,634.12
  6. Step 6: Final answer
    x = 60,260.58

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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.