Finding the Fourth Proportional to 79,239.92, 118,858.98 and 19,268.74
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Solution
The fourth proportional to 79,239.92, 118,858.98 and 19,268.74 is: 28,902.89
Step by Step Solution
- Step 1: Write the proportion equation
79,239.92 : 118,858.98 = 19,268.74 : x - Step 2: Convert to fraction form
79,239.92/118,858.98 = 19,268.74/x - Step 3: Cross multiply
79,239.92x = 118,858.98 × 19,268.74 - Step 4: Simplify right side
79,239.92x = 2,290,262,782.29 - Step 5: Solve for x
x = 2,290,262,782.29/79,239.92 - Step 6: Final answer
x = 28,902.89
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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.