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Finding the Fourth Proportional to 83,849.32, 115,701.54 and 56,684.50

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Solution

The fourth proportional to 83,849.32, 115,701.54 and 56,684.50 is: 78,217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,849.32 : 115,701.54 = 56,684.50 : x
  2. Step 2: Convert to fraction form
    83,849.32/115,701.54 = 56,684.50/x
  3. Step 3: Cross multiply
    83,849.32x = 115,701.54 × 56,684.50
  4. Step 4: Simplify right side
    83,849.32x = 6,558,483,944.13
  5. Step 5: Solve for x
    x = 6,558,483,944.13/83,849.32
  6. Step 6: Final answer
    x = 78,217.50

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