Finding the Fourth Proportional to 65.99, 91.07 and 38.37
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Solution
The fourth proportional to 65.99, 91.07 and 38.37 is: 52.95
Step by Step Solution
- Step 1: Write the proportion equation
65.99 : 91.07 = 38.37 : x - Step 2: Convert to fraction form
65.99/91.07 = 38.37/x - Step 3: Cross multiply
65.99x = 91.07 × 38.37 - Step 4: Simplify right side
65.99x = 3,494.13 - Step 5: Solve for x
x = 3,494.13/65.99 - Step 6: Final answer
x = 52.95
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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.