Home / 87,880.96-131,780.01-31,713.73

Finding the Fourth Proportional to 87,880.96, 131,780.01 and 31,713.73

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Solution

The fourth proportional to 87,880.96, 131,780.01 and 31,713.73 is: 47,555.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,880.96 : 131,780.01 = 31,713.73 : x
  2. Step 2: Convert to fraction form
    87,880.96/131,780.01 = 31,713.73/x
  3. Step 3: Cross multiply
    87,880.96x = 131,780.01 × 31,713.73
  4. Step 4: Simplify right side
    87,880.96x = 4,179,235,656.54
  5. Step 5: Solve for x
    x = 4,179,235,656.54/87,880.96
  6. Step 6: Final answer
    x = 47,555.64

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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.