Finding the Fourth Proportional to 84,409.36, 126,615.48 and 69,560.08
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Solution
The fourth proportional to 84,409.36, 126,615.48 and 69,560.08 is: 104,341.31
Step by Step Solution
- Step 1: Write the proportion equation
84,409.36 : 126,615.48 = 69,560.08 : x - Step 2: Convert to fraction form
84,409.36/126,615.48 = 69,560.08/x - Step 3: Cross multiply
84,409.36x = 126,615.48 × 69,560.08 - Step 4: Simplify right side
84,409.36x = 8,807,382,918.04 - Step 5: Solve for x
x = 8,807,382,918.04/84,409.36 - Step 6: Final answer
x = 104,341.31
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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.