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Finding the Fourth Proportional to 87,614.58, 131,421.85 and 21,054.71

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Solution

The fourth proportional to 87,614.58, 131,421.85 and 21,054.71 is: 31,582.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,614.58 : 131,421.85 = 21,054.71 : x
  2. Step 2: Convert to fraction form
    87,614.58/131,421.85 = 21,054.71/x
  3. Step 3: Cross multiply
    87,614.58x = 131,421.85 × 21,054.71
  4. Step 4: Simplify right side
    87,614.58x = 2,767,048,177.03
  5. Step 5: Solve for x
    x = 2,767,048,177.03/87,614.58
  6. Step 6: Final answer
    x = 31,582.05

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