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Finding the Fourth Proportional to 90,057.12, 135,012.80 and 37,506.08

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Solution

The fourth proportional to 90,057.12, 135,012.80 and 37,506.08 is: 56,228.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,057.12 : 135,012.80 = 37,506.08 : x
  2. Step 2: Convert to fraction form
    90,057.12/135,012.80 = 37,506.08/x
  3. Step 3: Cross multiply
    90,057.12x = 135,012.80 × 37,506.08
  4. Step 4: Simplify right side
    90,057.12x = 5,063,800,877.82
  5. Step 5: Solve for x
    x = 5,063,800,877.82/90,057.12
  6. Step 6: Final answer
    x = 56,228.77

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