Finding the Fourth Proportional to 56.01, 84.40 and 46.09
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Solution
The fourth proportional to 56.01, 84.40 and 46.09 is: 69.45
Step by Step Solution
- Step 1: Write the proportion equation
56.01 : 84.40 = 46.09 : x - Step 2: Convert to fraction form
56.01/84.40 = 46.09/x - Step 3: Cross multiply
56.01x = 84.40 × 46.09 - Step 4: Simplify right side
56.01x = 3,890.16 - Step 5: Solve for x
x = 3,890.16/56.01 - Step 6: Final answer
x = 69.45
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.