Finding the Fourth Proportional to 98.23, 135.55 and 58.93
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Solution
The fourth proportional to 98.23, 135.55 and 58.93 is: 81.32
Step by Step Solution
- Step 1: Write the proportion equation
98.23 : 135.55 = 58.93 : x - Step 2: Convert to fraction form
98.23/135.55 = 58.93/x - Step 3: Cross multiply
98.23x = 135.55 × 58.93 - Step 4: Simplify right side
98.23x = 7,987.96 - Step 5: Solve for x
x = 7,987.96/98.23 - Step 6: Final answer
x = 81.32
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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.