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Finding the Fourth Proportional to 74,369.61, 102,631.46 and 40,835.61

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Solution

The fourth proportional to 74,369.61, 102,631.46 and 40,835.61 is: 56,353.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,369.61 : 102,631.46 = 40,835.61 : x
  2. Step 2: Convert to fraction form
    74,369.61/102,631.46 = 40,835.61/x
  3. Step 3: Cross multiply
    74,369.61x = 102,631.46 × 40,835.61
  4. Step 4: Simplify right side
    74,369.61x = 4,191,018,070.11
  5. Step 5: Solve for x
    x = 4,191,018,070.11/74,369.61
  6. Step 6: Final answer
    x = 56,353.91

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