Finding the Fourth Proportional to 63.88, 88.18 and 58.44
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Solution
The fourth proportional to 63.88, 88.18 and 58.44 is: 80.67
Step by Step Solution
- Step 1: Write the proportion equation
63.88 : 88.18 = 58.44 : x - Step 2: Convert to fraction form
63.88/88.18 = 58.44/x - Step 3: Cross multiply
63.88x = 88.18 × 58.44 - Step 4: Simplify right side
63.88x = 5,153.24 - Step 5: Solve for x
x = 5,153.24/63.88 - Step 6: Final answer
x = 80.67
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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.