Finding the Third Proportional to 31,419.75 and 68,379.75
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Solution
The third proportional to 31,419.75 and 68,379.75 is: 148,816.91
Step by Step Solution
- Step 1: Write the proportion equation
31,419.75 : 68,379.75 = 68,379.75 : x - Step 2: Convert to fraction form
31,419.75/68,379.75 = 68,379.75/x - Step 3: Cross multiply
31,419.75x = 68,379.75 × 68,379.75 - Step 4: Simplify right side
31,419.75x = 4,675,790,210.06 - Step 5: Solve for x
x = 4,675,790,210.06/31,419.75 - Step 6: Final answer
x = 148,816.91
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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.