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Finding the Fourth Proportional to 88,420.50, 122,032.64 and 56,657.07

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Solution

The fourth proportional to 88,420.50, 122,032.64 and 56,657.07 is: 78,194.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,420.50 : 122,032.64 = 56,657.07 : x
  2. Step 2: Convert to fraction form
    88,420.50/122,032.64 = 56,657.07/x
  3. Step 3: Cross multiply
    88,420.50x = 122,032.64 × 56,657.07
  4. Step 4: Simplify right side
    88,420.50x = 6,914,011,968.41
  5. Step 5: Solve for x
    x = 6,914,011,968.41/88,420.50
  6. Step 6: Final answer
    x = 78,194.67

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