Finding the Third Proportional to 38,639.75 and 81,430.75
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Solution
The third proportional to 38,639.75 and 81,430.75 is: 171,609.99
Step by Step Solution
- Step 1: Write the proportion equation
38,639.75 : 81,430.75 = 81,430.75 : x - Step 2: Convert to fraction form
38,639.75/81,430.75 = 81,430.75/x - Step 3: Cross multiply
38,639.75x = 81,430.75 × 81,430.75 - Step 4: Simplify right side
38,639.75x = 6,630,967,045.56 - Step 5: Solve for x
x = 6,630,967,045.56/38,639.75 - Step 6: Final answer
x = 171,609.99
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These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.