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Finding the Fourth Proportional to 91,412.64, 137,082.60 and 35,221.74

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Solution

The fourth proportional to 91,412.64, 137,082.60 and 35,221.74 is: 52,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,412.64 : 137,082.60 = 35,221.74 : x
  2. Step 2: Convert to fraction form
    91,412.64/137,082.60 = 35,221.74/x
  3. Step 3: Cross multiply
    91,412.64x = 137,082.60 × 35,221.74
  4. Step 4: Simplify right side
    91,412.64x = 4,828,287,695.72
  5. Step 5: Solve for x
    x = 4,828,287,695.72/91,412.64
  6. Step 6: Final answer
    x = 52,818.60

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