Home / 87,462.18-131,161.05-31,287.06

Finding the Fourth Proportional to 87,462.18, 131,161.05 and 31,287.06

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Solution

The fourth proportional to 87,462.18, 131,161.05 and 31,287.06 is: 46,919.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,462.18 : 131,161.05 = 31,287.06 : x
  2. Step 2: Convert to fraction form
    87,462.18/131,161.05 = 31,287.06/x
  3. Step 3: Cross multiply
    87,462.18x = 131,161.05 × 31,287.06
  4. Step 4: Simplify right side
    87,462.18x = 4,103,643,641.01
  5. Step 5: Solve for x
    x = 4,103,643,641.01/87,462.18
  6. Step 6: Final answer
    x = 46,919.06

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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.