Finding the Third Proportional to 39,390.75 and 84,318.75
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Solution
The third proportional to 39,390.75 and 84,318.75 is: 180,490.38
Step by Step Solution
- Step 1: Write the proportion equation
39,390.75 : 84,318.75 = 84,318.75 : x - Step 2: Convert to fraction form
39,390.75/84,318.75 = 84,318.75/x - Step 3: Cross multiply
39,390.75x = 84,318.75 × 84,318.75 - Step 4: Simplify right side
39,390.75x = 7,109,651,601.56 - Step 5: Solve for x
x = 7,109,651,601.56/39,390.75 - Step 6: Final answer
x = 180,490.38
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Why These Related Problems?
These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.