Finding the Fourth Proportional to 36.99, 51.12 and 31.59
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Solution
The fourth proportional to 36.99, 51.12 and 31.59 is: 43.66
Step by Step Solution
- Step 1: Write the proportion equation
36.99 : 51.12 = 31.59 : x - Step 2: Convert to fraction form
36.99/51.12 = 31.59/x - Step 3: Cross multiply
36.99x = 51.12 × 31.59 - Step 4: Simplify right side
36.99x = 1,614.88 - Step 5: Solve for x
x = 1,614.88/36.99 - Step 6: Final answer
x = 43.66
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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.