Home / 80,721.68-121,082.52-25,322

Finding the Fourth Proportional to 80,721.68, 121,082.52 and 25,322

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Solution

The fourth proportional to 80,721.68, 121,082.52 and 25,322 is: 37,983.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,721.68 : 121,082.52 = 25,322 : x
  2. Step 2: Convert to fraction form
    80,721.68/121,082.52 = 25,322/x
  3. Step 3: Cross multiply
    80,721.68x = 121,082.52 × 25,322
  4. Step 4: Simplify right side
    80,721.68x = 3,066,051,571.44
  5. Step 5: Solve for x
    x = 3,066,051,571.44/80,721.68
  6. Step 6: Final answer
    x = 37,983.00

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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.