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Finding the Fourth Proportional to 55,200.66, 82,802.35 and 20,140.31

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Solution

The fourth proportional to 55,200.66, 82,802.35 and 20,140.31 is: 30,210.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,200.66 : 82,802.35 = 20,140.31 : x
  2. Step 2: Convert to fraction form
    55,200.66/82,802.35 = 20,140.31/x
  3. Step 3: Cross multiply
    55,200.66x = 82,802.35 × 20,140.31
  4. Step 4: Simplify right side
    55,200.66x = 1,667,665,229.91
  5. Step 5: Solve for x
    x = 1,667,665,229.91/55,200.66
  6. Step 6: Final answer
    x = 30,210.97

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