Home / 68,838.54-94,985.91-40,540.38

Finding the Fourth Proportional to 68,838.54, 94,985.91 and 40,540.38

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Solution

The fourth proportional to 68,838.54, 94,985.91 and 40,540.38 is: 55,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,838.54 : 94,985.91 = 40,540.38 : x
  2. Step 2: Convert to fraction form
    68,838.54/94,985.91 = 40,540.38/x
  3. Step 3: Cross multiply
    68,838.54x = 94,985.91 × 40,540.38
  4. Step 4: Simplify right side
    68,838.54x = 3,850,764,886.05
  5. Step 5: Solve for x
    x = 3,850,764,886.05/68,838.54
  6. Step 6: Final answer
    x = 55,939.08

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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.