Finding the Fourth Proportional to 35.57, 53.58 and 27.99
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Solution
The fourth proportional to 35.57, 53.58 and 27.99 is: 42.16
Step by Step Solution
- Step 1: Write the proportion equation
35.57 : 53.58 = 27.99 : x - Step 2: Convert to fraction form
35.57/53.58 = 27.99/x - Step 3: Cross multiply
35.57x = 53.58 × 27.99 - Step 4: Simplify right side
35.57x = 1,499.56 - Step 5: Solve for x
x = 1,499.56/35.57 - Step 6: Final answer
x = 42.16
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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.