Home / 87,955.74-131,931.78-21,396.24

Finding the Fourth Proportional to 87,955.74, 131,931.78 and 21,396.24

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Solution

The fourth proportional to 87,955.74, 131,931.78 and 21,396.24 is: 32,093.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,955.74 : 131,931.78 = 21,396.24 : x
  2. Step 2: Convert to fraction form
    87,955.74/131,931.78 = 21,396.24/x
  3. Step 3: Cross multiply
    87,955.74x = 131,931.78 × 21,396.24
  4. Step 4: Simplify right side
    87,955.74x = 2,822,844,028.51
  5. Step 5: Solve for x
    x = 2,822,844,028.51/87,955.74
  6. Step 6: Final answer
    x = 32,093.91

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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.