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Finding the Fourth Proportional to 101,387.60, 152,069.56 and 31,260.88

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Solution

The fourth proportional to 101,387.60, 152,069.56 and 31,260.88 is: 46,887.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,387.60 : 152,069.56 = 31,260.88 : x
  2. Step 2: Convert to fraction form
    101,387.60/152,069.56 = 31,260.88/x
  3. Step 3: Cross multiply
    101,387.60x = 152,069.56 × 31,260.88
  4. Step 4: Simplify right side
    101,387.60x = 4,753,828,266.81
  5. Step 5: Solve for x
    x = 4,753,828,266.81/101,387.60
  6. Step 6: Final answer
    x = 46,887.67

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