Finding the Fourth Proportional to 97,678.77, 134,790.18 and 54,650.79
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Solution
The fourth proportional to 97,678.77, 134,790.18 and 54,650.79 is: 75,414.44
Step by Step Solution
- Step 1: Write the proportion equation
97,678.77 : 134,790.18 = 54,650.79 : x - Step 2: Convert to fraction form
97,678.77/134,790.18 = 54,650.79/x - Step 3: Cross multiply
97,678.77x = 134,790.18 × 54,650.79 - Step 4: Simplify right side
97,678.77x = 7,366,389,821.24 - Step 5: Solve for x
x = 7,366,389,821.24/97,678.77 - Step 6: Final answer
x = 75,414.44
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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.