Finding the Fourth Proportional to 84,229.21, 116,236.55 and 45,989.09
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Solution
The fourth proportional to 84,229.21, 116,236.55 and 45,989.09 is: 63,465.07
Step by Step Solution
- Step 1: Write the proportion equation
84,229.21 : 116,236.55 = 45,989.09 : x - Step 2: Convert to fraction form
84,229.21/116,236.55 = 45,989.09/x - Step 3: Cross multiply
84,229.21x = 116,236.55 × 45,989.09 - Step 4: Simplify right side
84,229.21x = 5,345,612,693.03 - Step 5: Solve for x
x = 5,345,612,693.03/84,229.21 - Step 6: Final answer
x = 63,465.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.