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Finding the Fourth Proportional to 72,499.59, 100,059.42 and 40,670.52

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Solution

The fourth proportional to 72,499.59, 100,059.42 and 40,670.52 is: 56,130.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,499.59 : 100,059.42 = 40,670.52 : x
  2. Step 2: Convert to fraction form
    72,499.59/100,059.42 = 40,670.52/x
  3. Step 3: Cross multiply
    72,499.59x = 100,059.42 × 40,670.52
  4. Step 4: Simplify right side
    72,499.59x = 4,069,468,642.30
  5. Step 5: Solve for x
    x = 4,069,468,642.30/72,499.59
  6. Step 6: Final answer
    x = 56,130.92

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