Finding the Fourth Proportional to 71,619.36, 107,412.84 and 27,230.28
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Solution
The fourth proportional to 71,619.36, 107,412.84 and 27,230.28 is: 40,839.26
Step by Step Solution
- Step 1: Write the proportion equation
71,619.36 : 107,412.84 = 27,230.28 : x - Step 2: Convert to fraction form
71,619.36/107,412.84 = 27,230.28/x - Step 3: Cross multiply
71,619.36x = 107,412.84 × 27,230.28 - Step 4: Simplify right side
71,619.36x = 2,924,881,708.80 - Step 5: Solve for x
x = 2,924,881,708.80/71,619.36 - Step 6: Final answer
x = 40,839.26
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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.