Finding the Third Proportional to 31,212.84 and 68,639.91
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Solution
The third proportional to 31,212.84 and 68,639.91 is: 150,945.45
Step by Step Solution
- Step 1: Write the proportion equation
31,212.84 : 68,639.91 = 68,639.91 : x - Step 2: Convert to fraction form
31,212.84/68,639.91 = 68,639.91/x - Step 3: Cross multiply
31,212.84x = 68,639.91 × 68,639.91 - Step 4: Simplify right side
31,212.84x = 4,711,436,730.01 - Step 5: Solve for x
x = 4,711,436,730.01/31,212.84 - Step 6: Final answer
x = 150,945.45
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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.