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Finding the Fourth Proportional to 76,782.52, 115,086.42 and 46,730.46

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Solution

The fourth proportional to 76,782.52, 115,086.42 and 46,730.46 is: 70,042.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,782.52 : 115,086.42 = 46,730.46 : x
  2. Step 2: Convert to fraction form
    76,782.52/115,086.42 = 46,730.46/x
  3. Step 3: Cross multiply
    76,782.52x = 115,086.42 × 46,730.46
  4. Step 4: Simplify right side
    76,782.52x = 5,378,041,346.35
  5. Step 5: Solve for x
    x = 5,378,041,346.35/76,782.52
  6. Step 6: Final answer
    x = 70,042.52

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