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Finding the Fourth Proportional to 85,475.68, 128,225.58 and 26,316.16

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Solution

The fourth proportional to 85,475.68, 128,225.58 and 26,316.16 is: 39,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,475.68 : 128,225.58 = 26,316.16 : x
  2. Step 2: Convert to fraction form
    85,475.68/128,225.58 = 26,316.16/x
  3. Step 3: Cross multiply
    85,475.68x = 128,225.58 × 26,316.16
  4. Step 4: Simplify right side
    85,475.68x = 3,374,404,879.37
  5. Step 5: Solve for x
    x = 3,374,404,879.37/85,475.68
  6. Step 6: Final answer
    x = 39,477.95

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