Finding the Fourth Proportional to 81.84, 112.93 and 44.99
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Solution
The fourth proportional to 81.84, 112.93 and 44.99 is: 62.09
Step by Step Solution
- Step 1: Write the proportion equation
81.84 : 112.93 = 44.99 : x - Step 2: Convert to fraction form
81.84/112.93 = 44.99/x - Step 3: Cross multiply
81.84x = 112.93 × 44.99 - Step 4: Simplify right side
81.84x = 5,081.13 - Step 5: Solve for x
x = 5,081.13/81.84 - Step 6: Final answer
x = 62.09
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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.