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Finding the Fourth Proportional to 47,380.78, 65,383.50 and 25,868.80

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Solution

The fourth proportional to 47,380.78, 65,383.50 and 25,868.80 is: 35,697.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,380.78 : 65,383.50 = 25,868.80 : x
  2. Step 2: Convert to fraction form
    47,380.78/65,383.50 = 25,868.80/x
  3. Step 3: Cross multiply
    47,380.78x = 65,383.50 × 25,868.80
  4. Step 4: Simplify right side
    47,380.78x = 1,691,392,684.80
  5. Step 5: Solve for x
    x = 1,691,392,684.80/47,380.78
  6. Step 6: Final answer
    x = 35,697.86

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1.5x scale

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.