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Finding the Fourth Proportional to 58,639.17, 80,922.18 and 31,781.67

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Solution

The fourth proportional to 58,639.17, 80,922.18 and 31,781.67 is: 43,858.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,639.17 : 80,922.18 = 31,781.67 : x
  2. Step 2: Convert to fraction form
    58,639.17/80,922.18 = 31,781.67/x
  3. Step 3: Cross multiply
    58,639.17x = 80,922.18 × 31,781.67
  4. Step 4: Simplify right side
    58,639.17x = 2,571,841,612.70
  5. Step 5: Solve for x
    x = 2,571,841,612.70/58,639.17
  6. Step 6: Final answer
    x = 43,858.77

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