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Finding the Fourth Proportional to 47,380.21, 65,381.87 and 25,865.66

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Solution

The fourth proportional to 47,380.21, 65,381.87 and 25,865.66 is: 35,693.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,380.21 : 65,381.87 = 25,865.66 : x
  2. Step 2: Convert to fraction form
    47,380.21/65,381.87 = 25,865.66/x
  3. Step 3: Cross multiply
    47,380.21x = 65,381.87 × 25,865.66
  4. Step 4: Simplify right side
    47,380.21x = 1,691,145,447.70
  5. Step 5: Solve for x
    x = 1,691,145,447.70/47,380.21
  6. Step 6: Final answer
    x = 35,693.08

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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.