Home / 78,033.18-107,684.98-42,222.40

Finding the Fourth Proportional to 78,033.18, 107,684.98 and 42,222.40

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Solution

The fourth proportional to 78,033.18, 107,684.98 and 42,222.40 is: 58,266.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,033.18 : 107,684.98 = 42,222.40 : x
  2. Step 2: Convert to fraction form
    78,033.18/107,684.98 = 42,222.40/x
  3. Step 3: Cross multiply
    78,033.18x = 107,684.98 × 42,222.40
  4. Step 4: Simplify right side
    78,033.18x = 4,546,718,299.55
  5. Step 5: Solve for x
    x = 4,546,718,299.55/78,033.18
  6. Step 6: Final answer
    x = 58,266.47

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