Finding the Fourth Proportional to 71,427.36, 107,116.20 and 29,295.48
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Solution
The fourth proportional to 71,427.36, 107,116.20 and 29,295.48 is: 43,933.03
Step by Step Solution
- Step 1: Write the proportion equation
71,427.36 : 107,116.20 = 29,295.48 : x - Step 2: Convert to fraction form
71,427.36/107,116.20 = 29,295.48/x - Step 3: Cross multiply
71,427.36x = 107,116.20 × 29,295.48 - Step 4: Simplify right side
71,427.36x = 3,138,020,494.78 - Step 5: Solve for x
x = 3,138,020,494.78/71,427.36 - Step 6: Final answer
x = 43,933.03
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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.