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Finding the Fourth Proportional to 39,759, 54,878.94 and 26,511

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Solution

The fourth proportional to 39,759, 54,878.94 and 26,511 is: 36,592.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,759 : 54,878.94 = 26,511 : x
  2. Step 2: Convert to fraction form
    39,759/54,878.94 = 26,511/x
  3. Step 3: Cross multiply
    39,759x = 54,878.94 × 26,511
  4. Step 4: Simplify right side
    39,759x = 1,454,895,578.34
  5. Step 5: Solve for x
    x = 1,454,895,578.34/39,759
  6. Step 6: Final answer
    x = 36,592.86

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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.