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Finding the Fourth Proportional to 90,762.52, 136,050.90 and 31,549.60

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Solution

The fourth proportional to 90,762.52, 136,050.90 and 31,549.60 is: 47,292.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,762.52 : 136,050.90 = 31,549.60 : x
  2. Step 2: Convert to fraction form
    90,762.52/136,050.90 = 31,549.60/x
  3. Step 3: Cross multiply
    90,762.52x = 136,050.90 × 31,549.60
  4. Step 4: Simplify right side
    90,762.52x = 4,292,351,474.64
  5. Step 5: Solve for x
    x = 4,292,351,474.64/90,762.52
  6. Step 6: Final answer
    x = 47,292.11

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