Finding the Fourth Proportional to 65.77, 98.16 and 59.99
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Solution
The fourth proportional to 65.77, 98.16 and 59.99 is: 89.53
Step by Step Solution
- Step 1: Write the proportion equation
65.77 : 98.16 = 59.99 : x - Step 2: Convert to fraction form
65.77/98.16 = 59.99/x - Step 3: Cross multiply
65.77x = 98.16 × 59.99 - Step 4: Simplify right side
65.77x = 5,887.90 - Step 5: Solve for x
x = 5,887.90/65.77 - Step 6: Final answer
x = 89.53
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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.