Home / 68,185.14-94,065.03-39,878.34

Finding the Fourth Proportional to 68,185.14, 94,065.03 and 39,878.34

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Solution

The fourth proportional to 68,185.14, 94,065.03 and 39,878.34 is: 55,014.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,185.14 : 94,065.03 = 39,878.34 : x
  2. Step 2: Convert to fraction form
    68,185.14/94,065.03 = 39,878.34/x
  3. Step 3: Cross multiply
    68,185.14x = 94,065.03 × 39,878.34
  4. Step 4: Simplify right side
    68,185.14x = 3,751,157,248.45
  5. Step 5: Solve for x
    x = 3,751,157,248.45/68,185.14
  6. Step 6: Final answer
    x = 55,014.29

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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.