Finding the Fourth Proportional to 90.07, 135.16 and 41.98
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Solution
The fourth proportional to 90.07, 135.16 and 41.98 is: 62.99
Step by Step Solution
- Step 1: Write the proportion equation
90.07 : 135.16 = 41.98 : x - Step 2: Convert to fraction form
90.07/135.16 = 41.98/x - Step 3: Cross multiply
90.07x = 135.16 × 41.98 - Step 4: Simplify right side
90.07x = 5,673.57 - Step 5: Solve for x
x = 5,673.57/90.07 - Step 6: Final answer
x = 62.99
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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.