Finding the Fourth Proportional to 84,405.36, 126,609.48 and 69,556.08
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Solution
The fourth proportional to 84,405.36, 126,609.48 and 69,556.08 is: 104,335.31
Step by Step Solution
- Step 1: Write the proportion equation
84,405.36 : 126,609.48 = 69,556.08 : x - Step 2: Convert to fraction form
84,405.36/126,609.48 = 69,556.08/x - Step 3: Cross multiply
84,405.36x = 126,609.48 × 69,556.08 - Step 4: Simplify right side
84,405.36x = 8,806,459,119.64 - Step 5: Solve for x
x = 8,806,459,119.64/84,405.36 - Step 6: Final answer
x = 104,335.31
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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.