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Finding the Fourth Proportional to 55,300.40, 82,950.60 and 13,747.40

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Solution

The fourth proportional to 55,300.40, 82,950.60 and 13,747.40 is: 20,621.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,300.40 : 82,950.60 = 13,747.40 : x
  2. Step 2: Convert to fraction form
    55,300.40/82,950.60 = 13,747.40/x
  3. Step 3: Cross multiply
    55,300.40x = 82,950.60 × 13,747.40
  4. Step 4: Simplify right side
    55,300.40x = 1,140,355,078.44
  5. Step 5: Solve for x
    x = 1,140,355,078.44/55,300.40
  6. Step 6: Final answer
    x = 20,621.10

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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.