Finding the Fourth Proportional to 63.08, 87.08 and 47.58
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Solution
The fourth proportional to 63.08, 87.08 and 47.58 is: 65.68
Step by Step Solution
- Step 1: Write the proportion equation
63.08 : 87.08 = 47.58 : x - Step 2: Convert to fraction form
63.08/87.08 = 47.58/x - Step 3: Cross multiply
63.08x = 87.08 × 47.58 - Step 4: Simplify right side
63.08x = 4,143.03 - Step 5: Solve for x
x = 4,143.03/63.08 - Step 6: Final answer
x = 65.68
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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.