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Finding the Fourth Proportional to 68,622.20, 102,803.70 and 35,228.60

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Solution

The fourth proportional to 68,622.20, 102,803.70 and 35,228.60 is: 52,776.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,622.20 : 102,803.70 = 35,228.60 : x
  2. Step 2: Convert to fraction form
    68,622.20/102,803.70 = 35,228.60/x
  3. Step 3: Cross multiply
    68,622.20x = 102,803.70 × 35,228.60
  4. Step 4: Simplify right side
    68,622.20x = 3,621,630,425.82
  5. Step 5: Solve for x
    x = 3,621,630,425.82/68,622.20
  6. Step 6: Final answer
    x = 52,776.37

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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.