Finding the Fourth Proportional to 74.08, 110.44 and 73.76
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Solution
The fourth proportional to 74.08, 110.44 and 73.76 is: 109.96
Step by Step Solution
- Step 1: Write the proportion equation
74.08 : 110.44 = 73.76 : x - Step 2: Convert to fraction form
74.08/110.44 = 73.76/x - Step 3: Cross multiply
74.08x = 110.44 × 73.76 - Step 4: Simplify right side
74.08x = 8,146.05 - Step 5: Solve for x
x = 8,146.05/74.08 - Step 6: Final answer
x = 109.96
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.