Finding the Fourth Proportional to 48.06, 71.64 and 46.62
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Solution
The fourth proportional to 48.06, 71.64 and 46.62 is: 69.49
Step by Step Solution
- Step 1: Write the proportion equation
48.06 : 71.64 = 46.62 : x - Step 2: Convert to fraction form
48.06/71.64 = 46.62/x - Step 3: Cross multiply
48.06x = 71.64 × 46.62 - Step 4: Simplify right side
48.06x = 3,339.86 - Step 5: Solve for x
x = 3,339.86/48.06 - Step 6: Final answer
x = 69.49
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.