Home / 54,382.62-81,603.64-21,103.98

Finding the Fourth Proportional to 54,382.62, 81,603.64 and 21,103.98

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Solution

The fourth proportional to 54,382.62, 81,603.64 and 21,103.98 is: 31,667.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,382.62 : 81,603.64 = 21,103.98 : x
  2. Step 2: Convert to fraction form
    54,382.62/81,603.64 = 21,103.98/x
  3. Step 3: Cross multiply
    54,382.62x = 81,603.64 × 21,103.98
  4. Step 4: Simplify right side
    54,382.62x = 1,722,161,586.49
  5. Step 5: Solve for x
    x = 1,722,161,586.49/54,382.62
  6. Step 6: Final answer
    x = 31,667.50

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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.