Home / 54,259.70-74,879.73-30,391.25

Finding the Fourth Proportional to 54,259.70, 74,879.73 and 30,391.25

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Solution

The fourth proportional to 54,259.70, 74,879.73 and 30,391.25 is: 41,940.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,259.70 : 74,879.73 = 30,391.25 : x
  2. Step 2: Convert to fraction form
    54,259.70/74,879.73 = 30,391.25/x
  3. Step 3: Cross multiply
    54,259.70x = 74,879.73 × 30,391.25
  4. Step 4: Simplify right side
    54,259.70x = 2,275,688,219.96
  5. Step 5: Solve for x
    x = 2,275,688,219.96/54,259.70
  6. Step 6: Final answer
    x = 41,940.67

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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.