Finding the Fourth Proportional to 77,104.26, 115,643.52 and 27,172.62
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Solution
The fourth proportional to 77,104.26, 115,643.52 and 27,172.62 is: 40,754.39
Step by Step Solution
- Step 1: Write the proportion equation
77,104.26 : 115,643.52 = 27,172.62 : x - Step 2: Convert to fraction form
77,104.26/115,643.52 = 27,172.62/x - Step 3: Cross multiply
77,104.26x = 115,643.52 × 27,172.62 - Step 4: Simplify right side
77,104.26x = 3,142,337,424.42 - Step 5: Solve for x
x = 3,142,337,424.42/77,104.26 - Step 6: Final answer
x = 40,754.39
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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.