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Finding the Fourth Proportional to 93,074.60, 139,611.90 and 57,645.20

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Solution

The fourth proportional to 93,074.60, 139,611.90 and 57,645.20 is: 86,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,074.60 : 139,611.90 = 57,645.20 : x
  2. Step 2: Convert to fraction form
    93,074.60/139,611.90 = 57,645.20/x
  3. Step 3: Cross multiply
    93,074.60x = 139,611.90 × 57,645.20
  4. Step 4: Simplify right side
    93,074.60x = 8,047,955,897.88
  5. Step 5: Solve for x
    x = 8,047,955,897.88/93,074.60
  6. Step 6: Final answer
    x = 86,467.80

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