Finding the Fourth Proportional to 75.91, 113.93 and 58.75
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Solution
The fourth proportional to 75.91, 113.93 and 58.75 is: 88.17
Step by Step Solution
- Step 1: Write the proportion equation
75.91 : 113.93 = 58.75 : x - Step 2: Convert to fraction form
75.91/113.93 = 58.75/x - Step 3: Cross multiply
75.91x = 113.93 × 58.75 - Step 4: Simplify right side
75.91x = 6,693.24 - Step 5: Solve for x
x = 6,693.24/75.91 - Step 6: Final answer
x = 88.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.