Finding the Fourth Proportional to 92.97, 128.23 and 57.99
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Solution
The fourth proportional to 92.97, 128.23 and 57.99 is: 79.98
Step by Step Solution
- Step 1: Write the proportion equation
92.97 : 128.23 = 57.99 : x - Step 2: Convert to fraction form
92.97/128.23 = 57.99/x - Step 3: Cross multiply
92.97x = 128.23 × 57.99 - Step 4: Simplify right side
92.97x = 7,436.06 - Step 5: Solve for x
x = 7,436.06/92.97 - Step 6: Final answer
x = 79.98
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.