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Finding the Fourth Proportional to 61,630.80, 92,446.20 and 53,854.80

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Solution

The fourth proportional to 61,630.80, 92,446.20 and 53,854.80 is: 80,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,630.80 : 92,446.20 = 53,854.80 : x
  2. Step 2: Convert to fraction form
    61,630.80/92,446.20 = 53,854.80/x
  3. Step 3: Cross multiply
    61,630.80x = 92,446.20 × 53,854.80
  4. Step 4: Simplify right side
    61,630.80x = 4,978,671,611.76
  5. Step 5: Solve for x
    x = 4,978,671,611.76/61,630.80
  6. Step 6: Final answer
    x = 80,782.20

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