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Finding the Fourth Proportional to 83,817.09, 125,435.58 and 51,783

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Solution

The fourth proportional to 83,817.09, 125,435.58 and 51,783 is: 77,495.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,817.09 : 125,435.58 = 51,783 : x
  2. Step 2: Convert to fraction form
    83,817.09/125,435.58 = 51,783/x
  3. Step 3: Cross multiply
    83,817.09x = 125,435.58 × 51,783
  4. Step 4: Simplify right side
    83,817.09x = 6,495,430,639.14
  5. Step 5: Solve for x
    x = 6,495,430,639.14/83,817.09
  6. Step 6: Final answer
    x = 77,495.30

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