Home / 85,354.92-117,789.80-47,629.17

Finding the Fourth Proportional to 85,354.92, 117,789.80 and 47,629.17

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Solution

The fourth proportional to 85,354.92, 117,789.80 and 47,629.17 is: 65,728.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,354.92 : 117,789.80 = 47,629.17 : x
  2. Step 2: Convert to fraction form
    85,354.92/117,789.80 = 47,629.17/x
  3. Step 3: Cross multiply
    85,354.92x = 117,789.80 × 47,629.17
  4. Step 4: Simplify right side
    85,354.92x = 5,610,230,170.32
  5. Step 5: Solve for x
    x = 5,610,230,170.32/85,354.92
  6. Step 6: Final answer
    x = 65,728.26

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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.