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Finding the Fourth Proportional to 73,109.70, 109,664.55 and 28,737.90

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Solution

The fourth proportional to 73,109.70, 109,664.55 and 28,737.90 is: 43,106.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,109.70 : 109,664.55 = 28,737.90 : x
  2. Step 2: Convert to fraction form
    73,109.70/109,664.55 = 28,737.90/x
  3. Step 3: Cross multiply
    73,109.70x = 109,664.55 × 28,737.90
  4. Step 4: Simplify right side
    73,109.70x = 3,151,528,871.45
  5. Step 5: Solve for x
    x = 3,151,528,871.45/73,109.70
  6. Step 6: Final answer
    x = 43,106.85

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