Finding the Fourth Proportional to 69,779.49, 104,672.70 and 19,863.09
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Solution
The fourth proportional to 69,779.49, 104,672.70 and 19,863.09 is: 29,795.62
Step by Step Solution
- Step 1: Write the proportion equation
69,779.49 : 104,672.70 = 19,863.09 : x - Step 2: Convert to fraction form
69,779.49/104,672.70 = 19,863.09/x - Step 3: Cross multiply
69,779.49x = 104,672.70 × 19,863.09 - Step 4: Simplify right side
69,779.49x = 2,079,123,260.64 - Step 5: Solve for x
x = 2,079,123,260.64/69,779.49 - Step 6: Final answer
x = 29,795.62
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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.