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Finding the Fourth Proportional to 55,300.60, 82,950.90 and 13,747.60

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Solution

The fourth proportional to 55,300.60, 82,950.90 and 13,747.60 is: 20,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,300.60 : 82,950.90 = 13,747.60 : x
  2. Step 2: Convert to fraction form
    55,300.60/82,950.90 = 13,747.60/x
  3. Step 3: Cross multiply
    55,300.60x = 82,950.90 × 13,747.60
  4. Step 4: Simplify right side
    55,300.60x = 1,140,375,792.84
  5. Step 5: Solve for x
    x = 1,140,375,792.84/55,300.60
  6. Step 6: Final answer
    x = 20,621.40

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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.