Home / 47,765.75-65,945.52-31,646.70

Finding the Fourth Proportional to 47,765.75, 65,945.52 and 31,646.70

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Solution

The fourth proportional to 47,765.75, 65,945.52 and 31,646.70 is: 43,691.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,765.75 : 65,945.52 = 31,646.70 : x
  2. Step 2: Convert to fraction form
    47,765.75/65,945.52 = 31,646.70/x
  3. Step 3: Cross multiply
    47,765.75x = 65,945.52 × 31,646.70
  4. Step 4: Simplify right side
    47,765.75x = 2,086,958,087.78
  5. Step 5: Solve for x
    x = 2,086,958,087.78/47,765.75
  6. Step 6: Final answer
    x = 43,691.52

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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.