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Finding the Fourth Proportional to 78,199.41, 117,281.13 and 46,618.39

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Solution

The fourth proportional to 78,199.41, 117,281.13 and 46,618.39 is: 69,916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,199.41 : 117,281.13 = 46,618.39 : x
  2. Step 2: Convert to fraction form
    78,199.41/117,281.13 = 46,618.39/x
  3. Step 3: Cross multiply
    78,199.41x = 117,281.13 × 46,618.39
  4. Step 4: Simplify right side
    78,199.41x = 5,467,457,457.98
  5. Step 5: Solve for x
    x = 5,467,457,457.98/78,199.41
  6. Step 6: Final answer
    x = 69,916.86

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