Home / 54,439.70-81,671.09-19,379.25

Finding the Fourth Proportional to 54,439.70, 81,671.09 and 19,379.25

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Solution

The fourth proportional to 54,439.70, 81,671.09 and 19,379.25 is: 29,072.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,439.70 : 81,671.09 = 19,379.25 : x
  2. Step 2: Convert to fraction form
    54,439.70/81,671.09 = 19,379.25/x
  3. Step 3: Cross multiply
    54,439.70x = 81,671.09 × 19,379.25
  4. Step 4: Simplify right side
    54,439.70x = 1,582,724,373.99
  5. Step 5: Solve for x
    x = 1,582,724,373.99/54,439.70
  6. Step 6: Final answer
    x = 29,072.98

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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.