Finding the Fourth Proportional to 74.08, 102.26 and 58.60
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Solution
The fourth proportional to 74.08, 102.26 and 58.60 is: 80.89
Step by Step Solution
- Step 1: Write the proportion equation
74.08 : 102.26 = 58.60 : x - Step 2: Convert to fraction form
74.08/102.26 = 58.60/x - Step 3: Cross multiply
74.08x = 102.26 × 58.60 - Step 4: Simplify right side
74.08x = 5,992.44 - Step 5: Solve for x
x = 5,992.44/74.08 - Step 6: Final answer
x = 80.89
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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.