Home / 85,359.44-117,785.16-47,635.28

Finding the Fourth Proportional to 85,359.44, 117,785.16 and 47,635.28

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Solution

The fourth proportional to 85,359.44, 117,785.16 and 47,635.28 is: 65,730.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,359.44 : 117,785.16 = 47,635.28 : x
  2. Step 2: Convert to fraction form
    85,359.44/117,785.16 = 47,635.28/x
  3. Step 3: Cross multiply
    85,359.44x = 117,785.16 × 47,635.28
  4. Step 4: Simplify right side
    85,359.44x = 5,610,729,076.44
  5. Step 5: Solve for x
    x = 5,610,729,076.44/85,359.44
  6. Step 6: Final answer
    x = 65,730.62

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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.