Home / 54,845.15-82,250.70-19,780.25

Finding the Fourth Proportional to 54,845.15, 82,250.70 and 19,780.25

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Solution

The fourth proportional to 54,845.15, 82,250.70 and 19,780.25 is: 29,664.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,845.15 : 82,250.70 = 19,780.25 : x
  2. Step 2: Convert to fraction form
    54,845.15/82,250.70 = 19,780.25/x
  3. Step 3: Cross multiply
    54,845.15x = 82,250.70 × 19,780.25
  4. Step 4: Simplify right side
    54,845.15x = 1,626,939,408.68
  5. Step 5: Solve for x
    x = 1,626,939,408.68/54,845.15
  6. Step 6: Final answer
    x = 29,664.23

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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.