Finding the Fourth Proportional to 75.26, 112.77 and 58.95
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Solution
The fourth proportional to 75.26, 112.77 and 58.95 is: 88.32
Step by Step Solution
- Step 1: Write the proportion equation
75.26 : 112.77 = 58.95 : x - Step 2: Convert to fraction form
75.26/112.77 = 58.95/x - Step 3: Cross multiply
75.26x = 112.77 × 58.95 - Step 4: Simplify right side
75.26x = 6,647.23 - Step 5: Solve for x
x = 6,647.23/75.26 - Step 6: Final answer
x = 88.32
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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.