Finding the Fourth Proportional to 86,409.36, 129,615.12 and 24,076.08
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Solution
The fourth proportional to 86,409.36, 129,615.12 and 24,076.08 is: 36,114.42
Step by Step Solution
- Step 1: Write the proportion equation
86,409.36 : 129,615.12 = 24,076.08 : x - Step 2: Convert to fraction form
86,409.36/129,615.12 = 24,076.08/x - Step 3: Cross multiply
86,409.36x = 129,615.12 × 24,076.08 - Step 4: Simplify right side
86,409.36x = 3,120,623,998.33 - Step 5: Solve for x
x = 3,120,623,998.33/86,409.36 - Step 6: Final answer
x = 36,114.42
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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.