Finding the Fourth Proportional to 79,129.63, 118,694.44 and 26,538.96
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Solution
The fourth proportional to 79,129.63, 118,694.44 and 26,538.96 is: 39,808.44
Step by Step Solution
- Step 1: Write the proportion equation
79,129.63 : 118,694.44 = 26,538.96 : x - Step 2: Convert to fraction form
79,129.63/118,694.44 = 26,538.96/x - Step 3: Cross multiply
79,129.63x = 118,694.44 × 26,538.96 - Step 4: Simplify right side
79,129.63x = 3,150,026,995.38 - Step 5: Solve for x
x = 3,150,026,995.38/79,129.63 - Step 6: Final answer
x = 39,808.44
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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.