Finding the Fourth Proportional to 75.62, 113.44 and 58.50
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Solution
The fourth proportional to 75.62, 113.44 and 58.50 is: 87.76
Step by Step Solution
- Step 1: Write the proportion equation
75.62 : 113.44 = 58.50 : x - Step 2: Convert to fraction form
75.62/113.44 = 58.50/x - Step 3: Cross multiply
75.62x = 113.44 × 58.50 - Step 4: Simplify right side
75.62x = 6,636.24 - Step 5: Solve for x
x = 6,636.24/75.62 - Step 6: Final answer
x = 87.76
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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.