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Finding the Fourth Proportional to 65,763.89, 90,758.78 and 37,086.11

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Solution

The fourth proportional to 65,763.89, 90,758.78 and 37,086.11 is: 51,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,763.89 : 90,758.78 = 37,086.11 : x
  2. Step 2: Convert to fraction form
    65,763.89/90,758.78 = 37,086.11/x
  3. Step 3: Cross multiply
    65,763.89x = 90,758.78 × 37,086.11
  4. Step 4: Simplify right side
    65,763.89x = 3,365,890,098.55
  5. Step 5: Solve for x
    x = 3,365,890,098.55/65,763.89
  6. Step 6: Final answer
    x = 51,181.43

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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.