Finding the Fourth Proportional to 35.78, 53.53 and 30.07
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Solution
The fourth proportional to 35.78, 53.53 and 30.07 is: 44.99
Step by Step Solution
- Step 1: Write the proportion equation
35.78 : 53.53 = 30.07 : x - Step 2: Convert to fraction form
35.78/53.53 = 30.07/x - Step 3: Cross multiply
35.78x = 53.53 × 30.07 - Step 4: Simplify right side
35.78x = 1,609.44 - Step 5: Solve for x
x = 1,609.44/35.78 - Step 6: Final answer
x = 44.99
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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.