Finding the Fourth Proportional to 85,449.92, 128,193.08 and 29,274.96
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Solution
The fourth proportional to 85,449.92, 128,193.08 and 29,274.96 is: 43,918.68
Step by Step Solution
- Step 1: Write the proportion equation
85,449.92 : 128,193.08 = 29,274.96 : x - Step 2: Convert to fraction form
85,449.92/128,193.08 = 29,274.96/x - Step 3: Cross multiply
85,449.92x = 128,193.08 × 29,274.96 - Step 4: Simplify right side
85,449.92x = 3,752,847,289.28 - Step 5: Solve for x
x = 3,752,847,289.28/85,449.92 - Step 6: Final answer
x = 43,918.68
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1.5x scale
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.