Home / 84,921.12-117,192.96-47,194.56

Finding the Fourth Proportional to 84,921.12, 117,192.96 and 47,194.56

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Solution

The fourth proportional to 84,921.12, 117,192.96 and 47,194.56 is: 65,129.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,921.12 : 117,192.96 = 47,194.56 : x
  2. Step 2: Convert to fraction form
    84,921.12/117,192.96 = 47,194.56/x
  3. Step 3: Cross multiply
    84,921.12x = 117,192.96 × 47,194.56
  4. Step 4: Simplify right side
    84,921.12x = 5,530,870,182.30
  5. Step 5: Solve for x
    x = 5,530,870,182.30/84,921.12
  6. Step 6: Final answer
    x = 65,129.50

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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.