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Finding the Fourth Proportional to 60,267.72, 90,400.06 and 20,821.08

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Solution

The fourth proportional to 60,267.72, 90,400.06 and 20,821.08 is: 31,231.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,267.72 : 90,400.06 = 20,821.08 : x
  2. Step 2: Convert to fraction form
    60,267.72/90,400.06 = 20,821.08/x
  3. Step 3: Cross multiply
    60,267.72x = 90,400.06 × 20,821.08
  4. Step 4: Simplify right side
    60,267.72x = 1,882,226,881.26
  5. Step 5: Solve for x
    x = 1,882,226,881.26/60,267.72
  6. Step 6: Final answer
    x = 31,231.09

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