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Finding the Fourth Proportional to 61,487.80, 92,231.70 and 53,711.80

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Solution

The fourth proportional to 61,487.80, 92,231.70 and 53,711.80 is: 80,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,487.80 : 92,231.70 = 53,711.80 : x
  2. Step 2: Convert to fraction form
    61,487.80/92,231.70 = 53,711.80/x
  3. Step 3: Cross multiply
    61,487.80x = 92,231.70 × 53,711.80
  4. Step 4: Simplify right side
    61,487.80x = 4,953,930,624.06
  5. Step 5: Solve for x
    x = 4,953,930,624.06/61,487.80
  6. Step 6: Final answer
    x = 80,567.70

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