Finding the Fourth Proportional to 63.34, 94.86 and 42.99
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Solution
The fourth proportional to 63.34, 94.86 and 42.99 is: 64.38
Step by Step Solution
- Step 1: Write the proportion equation
63.34 : 94.86 = 42.99 : x - Step 2: Convert to fraction form
63.34/94.86 = 42.99/x - Step 3: Cross multiply
63.34x = 94.86 × 42.99 - Step 4: Simplify right side
63.34x = 4,078.03 - Step 5: Solve for x
x = 4,078.03/63.34 - Step 6: Final answer
x = 64.38
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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.