Finding the Fourth Proportional to 75.06, 113.28 and 73.44
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Solution
The fourth proportional to 75.06, 113.28 and 73.44 is: 110.84
Step by Step Solution
- Step 1: Write the proportion equation
75.06 : 113.28 = 73.44 : x - Step 2: Convert to fraction form
75.06/113.28 = 73.44/x - Step 3: Cross multiply
75.06x = 113.28 × 73.44 - Step 4: Simplify right side
75.06x = 8,319.28 - Step 5: Solve for x
x = 8,319.28/75.06 - Step 6: Final answer
x = 110.84
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.