Finding the Fourth Proportional to 93.68, 129.24 and 58.70
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Solution
The fourth proportional to 93.68, 129.24 and 58.70 is: 80.98
Step by Step Solution
- Step 1: Write the proportion equation
93.68 : 129.24 = 58.70 : x - Step 2: Convert to fraction form
93.68/129.24 = 58.70/x - Step 3: Cross multiply
93.68x = 129.24 × 58.70 - Step 4: Simplify right side
93.68x = 7,586.14 - Step 5: Solve for x
x = 7,586.14/93.68 - Step 6: Final answer
x = 80.98
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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.