Finding the Fourth Proportional to 68,119.92, 101,883.96 and 39,972.96
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Solution
The fourth proportional to 68,119.92, 101,883.96 and 39,972.96 is: 59,785.79
Step by Step Solution
- Step 1: Write the proportion equation
68,119.92 : 101,883.96 = 39,972.96 : x - Step 2: Convert to fraction form
68,119.92/101,883.96 = 39,972.96/x - Step 3: Cross multiply
68,119.92x = 101,883.96 × 39,972.96 - Step 4: Simplify right side
68,119.92x = 4,072,603,457.72 - Step 5: Solve for x
x = 4,072,603,457.72/68,119.92 - Step 6: Final answer
x = 59,785.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.