Finding the Fourth Proportional to 71.00, 97.98 and 42.99
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Solution
The fourth proportional to 71.00, 97.98 and 42.99 is: 59.32
Step by Step Solution
- Step 1: Write the proportion equation
71.00 : 97.98 = 42.99 : x - Step 2: Convert to fraction form
71.00/97.98 = 42.99/x - Step 3: Cross multiply
71.00x = 97.98 × 42.99 - Step 4: Simplify right side
71.00x = 4,211.56 - Step 5: Solve for x
x = 4,211.56/71.00 - Step 6: Final answer
x = 59.32
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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.