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Finding the Fourth Proportional to 65,850.90, 98,776.08 and 26,379.78

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Solution

The fourth proportional to 65,850.90, 98,776.08 and 26,379.78 is: 39,569.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,850.90 : 98,776.08 = 26,379.78 : x
  2. Step 2: Convert to fraction form
    65,850.90/98,776.08 = 26,379.78/x
  3. Step 3: Cross multiply
    65,850.90x = 98,776.08 × 26,379.78
  4. Step 4: Simplify right side
    65,850.90x = 2,605,691,259.66
  5. Step 5: Solve for x
    x = 2,605,691,259.66/65,850.90
  6. Step 6: Final answer
    x = 39,569.56

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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.