Finding the Fourth Proportional to 75.08, 112.62 and 26.99
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Solution
The fourth proportional to 75.08, 112.62 and 26.99 is: 40.49
Step by Step Solution
- Step 1: Write the proportion equation
75.08 : 112.62 = 26.99 : x - Step 2: Convert to fraction form
75.08/112.62 = 26.99/x - Step 3: Cross multiply
75.08x = 112.62 × 26.99 - Step 4: Simplify right side
75.08x = 3,039.61 - Step 5: Solve for x
x = 3,039.61/75.08 - Step 6: Final answer
x = 40.49
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Double scale
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Similar ratio
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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.