Finding the Third Proportional to 38,778.75 and 84,921.75
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Solution
The third proportional to 38,778.75 and 84,921.75 is: 185,970.50
Step by Step Solution
- Step 1: Write the proportion equation
38,778.75 : 84,921.75 = 84,921.75 : x - Step 2: Convert to fraction form
38,778.75/84,921.75 = 84,921.75/x - Step 3: Cross multiply
38,778.75x = 84,921.75 × 84,921.75 - Step 4: Simplify right side
38,778.75x = 7,211,703,623.06 - Step 5: Solve for x
x = 7,211,703,623.06/38,778.75 - Step 6: Final answer
x = 185,970.50
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.