Home / 87,976.12-131,964.44-21,416.24

Finding the Fourth Proportional to 87,976.12, 131,964.44 and 21,416.24

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Solution

The fourth proportional to 87,976.12, 131,964.44 and 21,416.24 is: 32,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,976.12 : 131,964.44 = 21,416.24 : x
  2. Step 2: Convert to fraction form
    87,976.12/131,964.44 = 21,416.24/x
  3. Step 3: Cross multiply
    87,976.12x = 131,964.44 × 21,416.24
  4. Step 4: Simplify right side
    87,976.12x = 2,826,182,118.51
  5. Step 5: Solve for x
    x = 2,826,182,118.51/87,976.12
  6. Step 6: Final answer
    x = 32,124.42

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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.