Finding the Fourth Proportional to 90.05, 134.99 and 32.23
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Solution
The fourth proportional to 90.05, 134.99 and 32.23 is: 48.31
Step by Step Solution
- Step 1: Write the proportion equation
90.05 : 134.99 = 32.23 : x - Step 2: Convert to fraction form
90.05/134.99 = 32.23/x - Step 3: Cross multiply
90.05x = 134.99 × 32.23 - Step 4: Simplify right side
90.05x = 4,350.73 - Step 5: Solve for x
x = 4,350.73/90.05 - Step 6: Final answer
x = 48.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.