Finding the Fourth Proportional to 65.95, 98.42 and 56.95
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Solution
The fourth proportional to 65.95, 98.42 and 56.95 is: 84.99
Step by Step Solution
- Step 1: Write the proportion equation
65.95 : 98.42 = 56.95 : x - Step 2: Convert to fraction form
65.95/98.42 = 56.95/x - Step 3: Cross multiply
65.95x = 98.42 × 56.95 - Step 4: Simplify right side
65.95x = 5,605.02 - Step 5: Solve for x
x = 5,605.02/65.95 - Step 6: Final answer
x = 84.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.