Home / 54,314.88-81,102.72-47,936.64

Finding the Fourth Proportional to 54,314.88, 81,102.72 and 47,936.64

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Solution

The fourth proportional to 54,314.88, 81,102.72 and 47,936.64 is: 71,578.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,314.88 : 81,102.72 = 47,936.64 : x
  2. Step 2: Convert to fraction form
    54,314.88/81,102.72 = 47,936.64/x
  3. Step 3: Cross multiply
    54,314.88x = 81,102.72 × 47,936.64
  4. Step 4: Simplify right side
    54,314.88x = 3,887,791,891.66
  5. Step 5: Solve for x
    x = 3,887,791,891.66/54,314.88
  6. Step 6: Final answer
    x = 71,578.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.