Finding the Fourth Proportional to 83,852.56, 115,637.12 and 53,647.44
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Solution
The fourth proportional to 83,852.56, 115,637.12 and 53,647.44 is: 73,982.66
Step by Step Solution
- Step 1: Write the proportion equation
83,852.56 : 115,637.12 = 53,647.44 : x - Step 2: Convert to fraction form
83,852.56/115,637.12 = 53,647.44/x - Step 3: Cross multiply
83,852.56x = 115,637.12 × 53,647.44 - Step 4: Simplify right side
83,852.56x = 6,203,635,456.97 - Step 5: Solve for x
x = 6,203,635,456.97/83,852.56 - Step 6: Final answer
x = 73,982.66
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1.5x scale
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.