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Finding the Fourth Proportional to 61,666.20, 92,499.30 and 53,890.20

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Solution

The fourth proportional to 61,666.20, 92,499.30 and 53,890.20 is: 80,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,666.20 : 92,499.30 = 53,890.20 : x
  2. Step 2: Convert to fraction form
    61,666.20/92,499.30 = 53,890.20/x
  3. Step 3: Cross multiply
    61,666.20x = 92,499.30 × 53,890.20
  4. Step 4: Simplify right side
    61,666.20x = 4,984,805,776.86
  5. Step 5: Solve for x
    x = 4,984,805,776.86/61,666.20
  6. Step 6: Final answer
    x = 80,835.30

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