Finding the Fourth Proportional to 73.70, 110.42 and 47.99
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Solution
The fourth proportional to 73.70, 110.42 and 47.99 is: 71.91
Step by Step Solution
- Step 1: Write the proportion equation
73.70 : 110.42 = 47.99 : x - Step 2: Convert to fraction form
73.70/110.42 = 47.99/x - Step 3: Cross multiply
73.70x = 110.42 × 47.99 - Step 4: Simplify right side
73.70x = 5,299.06 - Step 5: Solve for x
x = 5,299.06/73.70 - Step 6: Final answer
x = 71.91
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.