Home / 87,904.59-131,855.49-21,345.27

Finding the Fourth Proportional to 87,904.59, 131,855.49 and 21,345.27

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Solution

The fourth proportional to 87,904.59, 131,855.49 and 21,345.27 is: 32,017.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,904.59 : 131,855.49 = 21,345.27 : x
  2. Step 2: Convert to fraction form
    87,904.59/131,855.49 = 21,345.27/x
  3. Step 3: Cross multiply
    87,904.59x = 131,855.49 × 21,345.27
  4. Step 4: Simplify right side
    87,904.59x = 2,814,491,035.03
  5. Step 5: Solve for x
    x = 2,814,491,035.03/87,904.59
  6. Step 6: Final answer
    x = 32,017.57

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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.