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Finding the Fourth Proportional to 40,700.42, 61,059.90 and 15,740.54

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Solution

The fourth proportional to 40,700.42, 61,059.90 and 15,740.54 is: 23,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,700.42 : 61,059.90 = 15,740.54 : x
  2. Step 2: Convert to fraction form
    40,700.42/61,059.90 = 15,740.54/x
  3. Step 3: Cross multiply
    40,700.42x = 61,059.90 × 15,740.54
  4. Step 4: Simplify right side
    40,700.42x = 961,115,798.35
  5. Step 5: Solve for x
    x = 961,115,798.35/40,700.42
  6. Step 6: Final answer
    x = 23,614.40

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