Home / 87,855.51-131,782.10-21,296.24

Finding the Fourth Proportional to 87,855.51, 131,782.10 and 21,296.24

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Solution

The fourth proportional to 87,855.51, 131,782.10 and 21,296.24 is: 31,944.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,855.51 : 131,782.10 = 21,296.24 : x
  2. Step 2: Convert to fraction form
    87,855.51/131,782.10 = 21,296.24/x
  3. Step 3: Cross multiply
    87,855.51x = 131,782.10 × 21,296.24
  4. Step 4: Simplify right side
    87,855.51x = 2,806,463,229.30
  5. Step 5: Solve for x
    x = 2,806,463,229.30/87,855.51
  6. Step 6: Final answer
    x = 31,944.08

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1.5x scale

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.