Home / 68,076.81-93,932.19-39,777.03

Finding the Fourth Proportional to 68,076.81, 93,932.19 and 39,777.03

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Solution

The fourth proportional to 68,076.81, 93,932.19 and 39,777.03 is: 54,884.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,076.81 : 93,932.19 = 39,777.03 : x
  2. Step 2: Convert to fraction form
    68,076.81/93,932.19 = 39,777.03/x
  3. Step 3: Cross multiply
    68,076.81x = 93,932.19 × 39,777.03
  4. Step 4: Simplify right side
    68,076.81x = 3,736,343,539.60
  5. Step 5: Solve for x
    x = 3,736,343,539.60/68,076.81
  6. Step 6: Final answer
    x = 54,884.23

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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.