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Finding the Fourth Proportional to 61,503.60, 92,255.40 and 55,477.20

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Solution

The fourth proportional to 61,503.60, 92,255.40 and 55,477.20 is: 83,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,503.60 : 92,255.40 = 55,477.20 : x
  2. Step 2: Convert to fraction form
    61,503.60/92,255.40 = 55,477.20/x
  3. Step 3: Cross multiply
    61,503.60x = 92,255.40 × 55,477.20
  4. Step 4: Simplify right side
    61,503.60x = 5,118,071,276.88
  5. Step 5: Solve for x
    x = 5,118,071,276.88/61,503.60
  6. Step 6: Final answer
    x = 83,215.80

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