Finding the Fourth Proportional to 97.79, 134.93 and 58.44
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Solution
The fourth proportional to 97.79, 134.93 and 58.44 is: 80.64
Step by Step Solution
- Step 1: Write the proportion equation
97.79 : 134.93 = 58.44 : x - Step 2: Convert to fraction form
97.79/134.93 = 58.44/x - Step 3: Cross multiply
97.79x = 134.93 × 58.44 - Step 4: Simplify right side
97.79x = 7,885.02 - Step 5: Solve for x
x = 7,885.02/97.79 - Step 6: Final answer
x = 80.64
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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.