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Finding the Fourth Proportional to 74,933.40, 112,400.10 and 72,017.40

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Solution

The fourth proportional to 74,933.40, 112,400.10 and 72,017.40 is: 108,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,933.40 : 112,400.10 = 72,017.40 : x
  2. Step 2: Convert to fraction form
    74,933.40/112,400.10 = 72,017.40/x
  3. Step 3: Cross multiply
    74,933.40x = 112,400.10 × 72,017.40
  4. Step 4: Simplify right side
    74,933.40x = 8,094,762,961.74
  5. Step 5: Solve for x
    x = 8,094,762,961.74/74,933.40
  6. Step 6: Final answer
    x = 108,026.10

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