Home / 87,759.84-131,604.48-31,589.76

Finding the Fourth Proportional to 87,759.84, 131,604.48 and 31,589.76

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Solution

The fourth proportional to 87,759.84, 131,604.48 and 31,589.76 is: 47,371.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,759.84 : 131,604.48 = 31,589.76 : x
  2. Step 2: Convert to fraction form
    87,759.84/131,604.48 = 31,589.76/x
  3. Step 3: Cross multiply
    87,759.84x = 131,604.48 × 31,589.76
  4. Step 4: Simplify right side
    87,759.84x = 4,157,353,938.12
  5. Step 5: Solve for x
    x = 4,157,353,938.12/87,759.84
  6. Step 6: Final answer
    x = 47,371.94

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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.