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Finding the Fourth Proportional to 55,284.40, 82,910.40 and 19,741.60

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Solution

The fourth proportional to 55,284.40, 82,910.40 and 19,741.60 is: 29,606.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,284.40 : 82,910.40 = 19,741.60 : x
  2. Step 2: Convert to fraction form
    55,284.40/82,910.40 = 19,741.60/x
  3. Step 3: Cross multiply
    55,284.40x = 82,910.40 × 19,741.60
  4. Step 4: Simplify right side
    55,284.40x = 1,636,783,952.64
  5. Step 5: Solve for x
    x = 1,636,783,952.64/55,284.40
  6. Step 6: Final answer
    x = 29,606.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.