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Finding the Fourth Proportional to 51,620.56, 77,459.06 and 20,031.87

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Solution

The fourth proportional to 51,620.56, 77,459.06 and 20,031.87 is: 30,058.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,620.56 : 77,459.06 = 20,031.87 : x
  2. Step 2: Convert to fraction form
    51,620.56/77,459.06 = 20,031.87/x
  3. Step 3: Cross multiply
    51,620.56x = 77,459.06 × 20,031.87
  4. Step 4: Simplify right side
    51,620.56x = 1,551,649,612.41
  5. Step 5: Solve for x
    x = 1,551,649,612.41/51,620.56
  6. Step 6: Final answer
    x = 30,058.75

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