Home / 54,768.18-82,102.32-19,699.78

Finding the Fourth Proportional to 54,768.18, 82,102.32 and 19,699.78

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Solution

The fourth proportional to 54,768.18, 82,102.32 and 19,699.78 is: 29,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,768.18 : 82,102.32 = 19,699.78 : x
  2. Step 2: Convert to fraction form
    54,768.18/82,102.32 = 19,699.78/x
  3. Step 3: Cross multiply
    54,768.18x = 82,102.32 × 19,699.78
  4. Step 4: Simplify right side
    54,768.18x = 1,617,397,641.49
  5. Step 5: Solve for x
    x = 1,617,397,641.49/54,768.18
  6. Step 6: Final answer
    x = 29,531.70

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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.