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Finding the Fourth Proportional to 92,579.60, 138,518.40 and 61,475.60

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Solution

The fourth proportional to 92,579.60, 138,518.40 and 61,475.60 is: 91,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,579.60 : 138,518.40 = 61,475.60 : x
  2. Step 2: Convert to fraction form
    92,579.60/138,518.40 = 61,475.60/x
  3. Step 3: Cross multiply
    92,579.60x = 138,518.40 × 61,475.60
  4. Step 4: Simplify right side
    92,579.60x = 8,515,501,751.04
  5. Step 5: Solve for x
    x = 8,515,501,751.04/92,579.60
  6. Step 6: Final answer
    x = 91,980.33

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