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Finding the Fourth Proportional to 60,715.90, 91,246.65 and 53,112.70

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Solution

The fourth proportional to 60,715.90, 91,246.65 and 53,112.70 is: 79,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,715.90 : 91,246.65 = 53,112.70 : x
  2. Step 2: Convert to fraction form
    60,715.90/91,246.65 = 53,112.70/x
  3. Step 3: Cross multiply
    60,715.90x = 91,246.65 × 53,112.70
  4. Step 4: Simplify right side
    60,715.90x = 4,846,355,947.46
  5. Step 5: Solve for x
    x = 4,846,355,947.46/60,715.90
  6. Step 6: Final answer
    x = 79,820.21

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