Finding the Fourth Proportional to 83,739.33, 115,480.49 and 55,008.09
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Solution
The fourth proportional to 83,739.33, 115,480.49 and 55,008.09 is: 75,858.75
Step by Step Solution
- Step 1: Write the proportion equation
83,739.33 : 115,480.49 = 55,008.09 : x - Step 2: Convert to fraction form
83,739.33/115,480.49 = 55,008.09/x - Step 3: Cross multiply
83,739.33x = 115,480.49 × 55,008.09 - Step 4: Simplify right side
83,739.33x = 6,352,360,912.12 - Step 5: Solve for x
x = 6,352,360,912.12/83,739.33 - Step 6: Final answer
x = 75,858.75
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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.