Home / 68,396.45-94,394.12-40,111.25

Finding the Fourth Proportional to 68,396.45, 94,394.12 and 40,111.25

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Solution

The fourth proportional to 68,396.45, 94,394.12 and 40,111.25 is: 55,357.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,396.45 : 94,394.12 = 40,111.25 : x
  2. Step 2: Convert to fraction form
    68,396.45/94,394.12 = 40,111.25/x
  3. Step 3: Cross multiply
    68,396.45x = 94,394.12 × 40,111.25
  4. Step 4: Simplify right side
    68,396.45x = 3,786,265,473.32
  5. Step 5: Solve for x
    x = 3,786,265,473.32/68,396.45
  6. Step 6: Final answer
    x = 55,357.64

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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.