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Finding the Fourth Proportional to 70,485.48, 105,786.54 and 52,898.76

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Solution

The fourth proportional to 70,485.48, 105,786.54 and 52,898.76 is: 79,391.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,485.48 : 105,786.54 = 52,898.76 : x
  2. Step 2: Convert to fraction form
    70,485.48/105,786.54 = 52,898.76/x
  3. Step 3: Cross multiply
    70,485.48x = 105,786.54 × 52,898.76
  4. Step 4: Simplify right side
    70,485.48x = 5,595,976,790.69
  5. Step 5: Solve for x
    x = 5,595,976,790.69/70,485.48
  6. Step 6: Final answer
    x = 79,391.91

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