Finding the Fourth Proportional to 76.01, 104.93 and 55.02
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Solution
The fourth proportional to 76.01, 104.93 and 55.02 is: 75.95
Step by Step Solution
- Step 1: Write the proportion equation
76.01 : 104.93 = 55.02 : x - Step 2: Convert to fraction form
76.01/104.93 = 55.02/x - Step 3: Cross multiply
76.01x = 104.93 × 55.02 - Step 4: Simplify right side
76.01x = 5,773.25 - Step 5: Solve for x
x = 5,773.25/76.01 - Step 6: Final answer
x = 75.95
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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.