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Finding the Fourth Proportional to 76,960.77, 106,206.30 and 45,130.20

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Solution

The fourth proportional to 76,960.77, 106,206.30 and 45,130.20 is: 62,279.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,960.77 : 106,206.30 = 45,130.20 : x
  2. Step 2: Convert to fraction form
    76,960.77/106,206.30 = 45,130.20/x
  3. Step 3: Cross multiply
    76,960.77x = 106,206.30 × 45,130.20
  4. Step 4: Simplify right side
    76,960.77x = 4,793,111,560.26
  5. Step 5: Solve for x
    x = 4,793,111,560.26/76,960.77
  6. Step 6: Final answer
    x = 62,279.93

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