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Finding the Fourth Proportional to 72,432.93, 99,961.65 and 40,612.08

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Solution

The fourth proportional to 72,432.93, 99,961.65 and 40,612.08 is: 56,047.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,432.93 : 99,961.65 = 40,612.08 : x
  2. Step 2: Convert to fraction form
    72,432.93/99,961.65 = 40,612.08/x
  3. Step 3: Cross multiply
    72,432.93x = 99,961.65 × 40,612.08
  4. Step 4: Simplify right side
    72,432.93x = 4,059,650,526.73
  5. Step 5: Solve for x
    x = 4,059,650,526.73/72,432.93
  6. Step 6: Final answer
    x = 56,047.03

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