Finding the Fourth Proportional to 79.05, 108.99 and 58.26
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Solution
The fourth proportional to 79.05, 108.99 and 58.26 is: 80.33
Step by Step Solution
- Step 1: Write the proportion equation
79.05 : 108.99 = 58.26 : x - Step 2: Convert to fraction form
79.05/108.99 = 58.26/x - Step 3: Cross multiply
79.05x = 108.99 × 58.26 - Step 4: Simplify right side
79.05x = 6,349.76 - Step 5: Solve for x
x = 6,349.76/79.05 - Step 6: Final answer
x = 80.33
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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.