Finding the Fourth Proportional to 45.54, 62.80 and 29.99
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Solution
The fourth proportional to 45.54, 62.80 and 29.99 is: 41.36
Step by Step Solution
- Step 1: Write the proportion equation
45.54 : 62.80 = 29.99 : x - Step 2: Convert to fraction form
45.54/62.80 = 29.99/x - Step 3: Cross multiply
45.54x = 62.80 × 29.99 - Step 4: Simplify right side
45.54x = 1,883.45 - Step 5: Solve for x
x = 1,883.45/45.54 - Step 6: Final answer
x = 41.36
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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.