Finding the Fourth Proportional to 84,899.63, 117,241.68 and 54,739.08
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Solution
The fourth proportional to 84,899.63, 117,241.68 and 54,739.08 is: 75,591.64
Step by Step Solution
- Step 1: Write the proportion equation
84,899.63 : 117,241.68 = 54,739.08 : x - Step 2: Convert to fraction form
84,899.63/117,241.68 = 54,739.08/x - Step 3: Cross multiply
84,899.63x = 117,241.68 × 54,739.08 - Step 4: Simplify right side
84,899.63x = 6,417,701,700.85 - Step 5: Solve for x
x = 6,417,701,700.85/84,899.63 - Step 6: Final answer
x = 75,591.64
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1.5x scale
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.