Home / 87,972.64-131,964.60-31,039.56

Finding the Fourth Proportional to 87,972.64, 131,964.60 and 31,039.56

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Solution

The fourth proportional to 87,972.64, 131,964.60 and 31,039.56 is: 46,561.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,972.64 : 131,964.60 = 31,039.56 : x
  2. Step 2: Convert to fraction form
    87,972.64/131,964.60 = 31,039.56/x
  3. Step 3: Cross multiply
    87,972.64x = 131,964.60 × 31,039.56
  4. Step 4: Simplify right side
    87,972.64x = 4,096,123,119.58
  5. Step 5: Solve for x
    x = 4,096,123,119.58/87,972.64
  6. Step 6: Final answer
    x = 46,561.33

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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.