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Finding the Fourth Proportional to 75,978.47, 104,850.02 and 41,986.01

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Solution

The fourth proportional to 75,978.47, 104,850.02 and 41,986.01 is: 57,940.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,978.47 : 104,850.02 = 41,986.01 : x
  2. Step 2: Convert to fraction form
    75,978.47/104,850.02 = 41,986.01/x
  3. Step 3: Cross multiply
    75,978.47x = 104,850.02 × 41,986.01
  4. Step 4: Simplify right side
    75,978.47x = 4,402,233,568.94
  5. Step 5: Solve for x
    x = 4,402,233,568.94/75,978.47
  6. Step 6: Final answer
    x = 57,940.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.