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Finding the Fourth Proportional to 68,653.87, 94,744.10 and 38,445.58

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Solution

The fourth proportional to 68,653.87, 94,744.10 and 38,445.58 is: 53,055.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,653.87 : 94,744.10 = 38,445.58 : x
  2. Step 2: Convert to fraction form
    68,653.87/94,744.10 = 38,445.58/x
  3. Step 3: Cross multiply
    68,653.87x = 94,744.10 × 38,445.58
  4. Step 4: Simplify right side
    68,653.87x = 3,642,491,735.33
  5. Step 5: Solve for x
    x = 3,642,491,735.33/68,653.87
  6. Step 6: Final answer
    x = 53,055.88

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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.