Home / 85,356.12-117,793.26-47,629.56

Finding the Fourth Proportional to 85,356.12, 117,793.26 and 47,629.56

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Solution

The fourth proportional to 85,356.12, 117,793.26 and 47,629.56 is: 65,729.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,356.12 : 117,793.26 = 47,629.56 : x
  2. Step 2: Convert to fraction form
    85,356.12/117,793.26 = 47,629.56/x
  3. Step 3: Cross multiply
    85,356.12x = 117,793.26 × 47,629.56
  4. Step 4: Simplify right side
    85,356.12x = 5,610,441,144.77
  5. Step 5: Solve for x
    x = 5,610,441,144.77/85,356.12
  6. Step 6: Final answer
    x = 65,729.81

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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.