Home / 275,374.49-412,986.63-75,647.39

Finding the Fourth Proportional to 275,374.49, 412,986.63 and 75,647.39

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Solution

The fourth proportional to 275,374.49, 412,986.63 and 75,647.39 is: 113,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,374.49 : 412,986.63 = 75,647.39 : x
  2. Step 2: Convert to fraction form
    275,374.49/412,986.63 = 75,647.39/x
  3. Step 3: Cross multiply
    275,374.49x = 412,986.63 × 75,647.39
  4. Step 4: Simplify right side
    275,374.49x = 31,241,360,664.40
  5. Step 5: Solve for x
    x = 31,241,360,664.40/275,374.49
  6. Step 6: Final answer
    x = 113,450.45

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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.