Home / 87,952.88-131,928.21-21,393.05

Finding the Fourth Proportional to 87,952.88, 131,928.21 and 21,393.05

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Solution

The fourth proportional to 87,952.88, 131,928.21 and 21,393.05 is: 32,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,952.88 : 131,928.21 = 21,393.05 : x
  2. Step 2: Convert to fraction form
    87,952.88/131,928.21 = 21,393.05/x
  3. Step 3: Cross multiply
    87,952.88x = 131,928.21 × 21,393.05
  4. Step 4: Simplify right side
    87,952.88x = 2,822,346,792.94
  5. Step 5: Solve for x
    x = 2,822,346,792.94/87,952.88
  6. Step 6: Final answer
    x = 32,089.31

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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.