Finding the Fourth Proportional to 84,351.36, 126,532.44 and 31,057.68
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Solution
The fourth proportional to 84,351.36, 126,532.44 and 31,057.68 is: 46,588.51
Step by Step Solution
- Step 1: Write the proportion equation
84,351.36 : 126,532.44 = 31,057.68 : x - Step 2: Convert to fraction form
84,351.36/126,532.44 = 31,057.68/x - Step 3: Cross multiply
84,351.36x = 126,532.44 × 31,057.68 - Step 4: Simplify right side
84,351.36x = 3,929,804,031.14 - Step 5: Solve for x
x = 3,929,804,031.14/84,351.36 - Step 6: Final answer
x = 46,588.51
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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.