Finding the Fourth Proportional to 84,478.02, 116,533.68 and 54,268.09
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Solution
The fourth proportional to 84,478.02, 116,533.68 and 54,268.09 is: 74,860.42
Step by Step Solution
- Step 1: Write the proportion equation
84,478.02 : 116,533.68 = 54,268.09 : x - Step 2: Convert to fraction form
84,478.02/116,533.68 = 54,268.09/x - Step 3: Cross multiply
84,478.02x = 116,533.68 × 54,268.09 - Step 4: Simplify right side
84,478.02x = 6,324,059,380.26 - Step 5: Solve for x
x = 6,324,059,380.26/84,478.02 - Step 6: Final answer
x = 74,860.42
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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.