Home / 68,428.32-94,429.24-38,212.80

Finding the Fourth Proportional to 68,428.32, 94,429.24 and 38,212.80

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Solution

The fourth proportional to 68,428.32, 94,429.24 and 38,212.80 is: 52,732.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,428.32 : 94,429.24 = 38,212.80 : x
  2. Step 2: Convert to fraction form
    68,428.32/94,429.24 = 38,212.80/x
  3. Step 3: Cross multiply
    68,428.32x = 94,429.24 × 38,212.80
  4. Step 4: Simplify right side
    68,428.32x = 3,608,405,662.27
  5. Step 5: Solve for x
    x = 3,608,405,662.27/68,428.32
  6. Step 6: Final answer
    x = 52,732.64

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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.