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Finding the Fourth Proportional to 90,636.70, 125,075.93 and 49,800.75

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Solution

The fourth proportional to 90,636.70, 125,075.93 and 49,800.75 is: 68,723.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,636.70 : 125,075.93 = 49,800.75 : x
  2. Step 2: Convert to fraction form
    90,636.70/125,075.93 = 49,800.75/x
  3. Step 3: Cross multiply
    90,636.70x = 125,075.93 × 49,800.75
  4. Step 4: Simplify right side
    90,636.70x = 6,228,875,120.95
  5. Step 5: Solve for x
    x = 6,228,875,120.95/90,636.70
  6. Step 6: Final answer
    x = 68,723.54

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