Home / 74,268.90-111,512.70-57,647.70

Finding the Fourth Proportional to 74,268.90, 111,512.70 and 57,647.70

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Solution

The fourth proportional to 74,268.90, 111,512.70 and 57,647.70 is: 86,556.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,268.90 : 111,512.70 = 57,647.70 : x
  2. Step 2: Convert to fraction form
    74,268.90/111,512.70 = 57,647.70/x
  3. Step 3: Cross multiply
    74,268.90x = 111,512.70 × 57,647.70
  4. Step 4: Simplify right side
    74,268.90x = 6,428,450,675.79
  5. Step 5: Solve for x
    x = 6,428,450,675.79/74,268.90
  6. Step 6: Final answer
    x = 86,556.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.