Home / 54,247.32-81,375.84-19,187.28

Finding the Fourth Proportional to 54,247.32, 81,375.84 and 19,187.28

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Solution

The fourth proportional to 54,247.32, 81,375.84 and 19,187.28 is: 28,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,247.32 : 81,375.84 = 19,187.28 : x
  2. Step 2: Convert to fraction form
    54,247.32/81,375.84 = 19,187.28/x
  3. Step 3: Cross multiply
    54,247.32x = 81,375.84 × 19,187.28
  4. Step 4: Simplify right side
    54,247.32x = 1,561,381,027.32
  5. Step 5: Solve for x
    x = 1,561,381,027.32/54,247.32
  6. Step 6: Final answer
    x = 28,782.64

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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.