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Finding the Fourth Proportional to 84,961.20, 127,358.10 and 47,539.20

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Solution

The fourth proportional to 84,961.20, 127,358.10 and 47,539.20 is: 71,261.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,961.20 : 127,358.10 = 47,539.20 : x
  2. Step 2: Convert to fraction form
    84,961.20/127,358.10 = 47,539.20/x
  3. Step 3: Cross multiply
    84,961.20x = 127,358.10 × 47,539.20
  4. Step 4: Simplify right side
    84,961.20x = 6,054,502,187.52
  5. Step 5: Solve for x
    x = 6,054,502,187.52/84,961.20
  6. Step 6: Final answer
    x = 71,261.97

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