Finding the Fourth Proportional to 85,379.82, 128,106.66 and 32,777.08
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Solution
The fourth proportional to 85,379.82, 128,106.66 and 32,777.08 is: 49,179.80
Step by Step Solution
- Step 1: Write the proportion equation
85,379.82 : 128,106.66 = 32,777.08 : x - Step 2: Convert to fraction form
85,379.82/128,106.66 = 32,777.08/x - Step 3: Cross multiply
85,379.82x = 128,106.66 × 32,777.08 - Step 4: Simplify right side
85,379.82x = 4,198,962,243.35 - Step 5: Solve for x
x = 4,198,962,243.35/85,379.82 - Step 6: Final answer
x = 49,179.80
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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.