Finding the Fourth Proportional to 128,577.44, 192,884.48 and 39,837.92
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Solution
The fourth proportional to 128,577.44, 192,884.48 and 39,837.92 is: 59,762.56
Step by Step Solution
- Step 1: Write the proportion equation
128,577.44 : 192,884.48 = 39,837.92 : x - Step 2: Convert to fraction form
128,577.44/192,884.48 = 39,837.92/x - Step 3: Cross multiply
128,577.44x = 192,884.48 × 39,837.92 - Step 4: Simplify right side
128,577.44x = 7,684,116,483.48 - Step 5: Solve for x
x = 7,684,116,483.48/128,577.44 - Step 6: Final answer
x = 59,762.56
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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.