Home / 68,431.32-94,433.37-38,215.80

Finding the Fourth Proportional to 68,431.32, 94,433.37 and 38,215.80

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Solution

The fourth proportional to 68,431.32, 94,433.37 and 38,215.80 is: 52,736.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,431.32 : 94,433.37 = 38,215.80 : x
  2. Step 2: Convert to fraction form
    68,431.32/94,433.37 = 38,215.80/x
  3. Step 3: Cross multiply
    68,431.32x = 94,433.37 × 38,215.80
  4. Step 4: Simplify right side
    68,431.32x = 3,608,846,781.25
  5. Step 5: Solve for x
    x = 3,608,846,781.25/68,431.32
  6. Step 6: Final answer
    x = 52,736.77

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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.