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Finding the Fourth Proportional to 77,065.68, 115,597.98 and 39,636.19

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Solution

The fourth proportional to 77,065.68, 115,597.98 and 39,636.19 is: 59,454.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,065.68 : 115,597.98 = 39,636.19 : x
  2. Step 2: Convert to fraction form
    77,065.68/115,597.98 = 39,636.19/x
  3. Step 3: Cross multiply
    77,065.68x = 115,597.98 × 39,636.19
  4. Step 4: Simplify right side
    77,065.68x = 4,581,863,498.90
  5. Step 5: Solve for x
    x = 4,581,863,498.90/77,065.68
  6. Step 6: Final answer
    x = 59,454.01

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