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Finding the Fourth Proportional to 68,216.63, 94,145.31 and 39,922.34

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Solution

The fourth proportional to 68,216.63, 94,145.31 and 39,922.34 is: 55,096.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,216.63 : 94,145.31 = 39,922.34 : x
  2. Step 2: Convert to fraction form
    68,216.63/94,145.31 = 39,922.34/x
  3. Step 3: Cross multiply
    68,216.63x = 94,145.31 × 39,922.34
  4. Step 4: Simplify right side
    68,216.63x = 3,758,500,604.50
  5. Step 5: Solve for x
    x = 3,758,500,604.50/68,216.63
  6. Step 6: Final answer
    x = 55,096.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.