Home / 87,982.12-131,973.44-21,422.24

Finding the Fourth Proportional to 87,982.12, 131,973.44 and 21,422.24

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Solution

The fourth proportional to 87,982.12, 131,973.44 and 21,422.24 is: 32,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,982.12 : 131,973.44 = 21,422.24 : x
  2. Step 2: Convert to fraction form
    87,982.12/131,973.44 = 21,422.24/x
  3. Step 3: Cross multiply
    87,982.12x = 131,973.44 × 21,422.24
  4. Step 4: Simplify right side
    87,982.12x = 2,827,166,705.31
  5. Step 5: Solve for x
    x = 2,827,166,705.31/87,982.12
  6. Step 6: Final answer
    x = 32,133.42

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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.