Home / 87,487.82-131,129.30-33,417.05

Finding the Fourth Proportional to 87,487.82, 131,129.30 and 33,417.05

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Solution

The fourth proportional to 87,487.82, 131,129.30 and 33,417.05 is: 50,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,487.82 : 131,129.30 = 33,417.05 : x
  2. Step 2: Convert to fraction form
    87,487.82/131,129.30 = 33,417.05/x
  3. Step 3: Cross multiply
    87,487.82x = 131,129.30 × 33,417.05
  4. Step 4: Simplify right side
    87,487.82x = 4,381,954,207.48
  5. Step 5: Solve for x
    x = 4,381,954,207.48/87,487.82
  6. Step 6: Final answer
    x = 50,086.45

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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.