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Finding the Fourth Proportional to 54,749.79, 81,735.82 and 52,805.79

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Solution

The fourth proportional to 54,749.79, 81,735.82 and 52,805.79 is: 78,833.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,749.79 : 81,735.82 = 52,805.79 : x
  2. Step 2: Convert to fraction form
    54,749.79/81,735.82 = 52,805.79/x
  3. Step 3: Cross multiply
    54,749.79x = 81,735.82 × 52,805.79
  4. Step 4: Simplify right side
    54,749.79x = 4,316,124,414.38
  5. Step 5: Solve for x
    x = 4,316,124,414.38/54,749.79
  6. Step 6: Final answer
    x = 78,833.63

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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.