Home / 87,814.20-131,786.10-35,261.40

Finding the Fourth Proportional to 87,814.20, 131,786.10 and 35,261.40

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Solution

The fourth proportional to 87,814.20, 131,786.10 and 35,261.40 is: 52,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,814.20 : 131,786.10 = 35,261.40 : x
  2. Step 2: Convert to fraction form
    87,814.20/131,786.10 = 35,261.40/x
  3. Step 3: Cross multiply
    87,814.20x = 131,786.10 × 35,261.40
  4. Step 4: Simplify right side
    87,814.20x = 4,646,962,386.54
  5. Step 5: Solve for x
    x = 4,646,962,386.54/87,814.20
  6. Step 6: Final answer
    x = 52,918.12

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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.