Finding the Fourth Proportional to 63.34, 87.44 and 45.63
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Solution
The fourth proportional to 63.34, 87.44 and 45.63 is: 62.99
Step by Step Solution
- Step 1: Write the proportion equation
63.34 : 87.44 = 45.63 : x - Step 2: Convert to fraction form
63.34/87.44 = 45.63/x - Step 3: Cross multiply
63.34x = 87.44 × 45.63 - Step 4: Simplify right side
63.34x = 3,989.89 - Step 5: Solve for x
x = 3,989.89/63.34 - Step 6: Final answer
x = 62.99
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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.