Home / 47,825.28-71,729.60-12,765.44

Finding the Fourth Proportional to 47,825.28, 71,729.60 and 12,765.44

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Solution

The fourth proportional to 47,825.28, 71,729.60 and 12,765.44 is: 19,145.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,825.28 : 71,729.60 = 12,765.44 : x
  2. Step 2: Convert to fraction form
    47,825.28/71,729.60 = 12,765.44/x
  3. Step 3: Cross multiply
    47,825.28x = 71,729.60 × 12,765.44
  4. Step 4: Simplify right side
    47,825.28x = 915,659,905.02
  5. Step 5: Solve for x
    x = 915,659,905.02/47,825.28
  6. Step 6: Final answer
    x = 19,145.94

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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.