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Finding the Fourth Proportional to 61,536, 84,920.04 and 36,057.40

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Solution

The fourth proportional to 61,536, 84,920.04 and 36,057.40 is: 49,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,536 : 84,920.04 = 36,057.40 : x
  2. Step 2: Convert to fraction form
    61,536/84,920.04 = 36,057.40/x
  3. Step 3: Cross multiply
    61,536x = 84,920.04 × 36,057.40
  4. Step 4: Simplify right side
    61,536x = 3,061,995,850.30
  5. Step 5: Solve for x
    x = 3,061,995,850.30/61,536
  6. Step 6: Final answer
    x = 49,759.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.