Finding the Fourth Proportional to 98.25, 135.58 and 58.92
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Solution
The fourth proportional to 98.25, 135.58 and 58.92 is: 81.31
Step by Step Solution
- Step 1: Write the proportion equation
98.25 : 135.58 = 58.92 : x - Step 2: Convert to fraction form
98.25/135.58 = 58.92/x - Step 3: Cross multiply
98.25x = 135.58 × 58.92 - Step 4: Simplify right side
98.25x = 7,988.37 - Step 5: Solve for x
x = 7,988.37/98.25 - Step 6: Final answer
x = 81.31
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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.