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Finding the Fourth Proportional to 57,069.84, 78,756.65 and 31,919.34

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Solution

The fourth proportional to 57,069.84, 78,756.65 and 31,919.34 is: 44,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,069.84 : 78,756.65 = 31,919.34 : x
  2. Step 2: Convert to fraction form
    57,069.84/78,756.65 = 31,919.34/x
  3. Step 3: Cross multiply
    57,069.84x = 78,756.65 × 31,919.34
  4. Step 4: Simplify right side
    57,069.84x = 2,513,860,723.60
  5. Step 5: Solve for x
    x = 2,513,860,723.60/57,069.84
  6. Step 6: Final answer
    x = 44,048.85

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