Finding the Fourth Proportional to 68,121.92, 101,886.96 and 39,974.96
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Solution
The fourth proportional to 68,121.92, 101,886.96 and 39,974.96 is: 59,788.79
Step by Step Solution
- Step 1: Write the proportion equation
68,121.92 : 101,886.96 = 39,974.96 : x - Step 2: Convert to fraction form
68,121.92/101,886.96 = 39,974.96/x - Step 3: Cross multiply
68,121.92x = 101,886.96 × 39,974.96 - Step 4: Simplify right side
68,121.92x = 4,072,927,150.52 - Step 5: Solve for x
x = 4,072,927,150.52/68,121.92 - Step 6: Final answer
x = 59,788.79
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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.