Finding the Fourth Proportional to 56.42, 84.64 and 25.99
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Solution
The fourth proportional to 56.42, 84.64 and 25.99 is: 38.99
Step by Step Solution
- Step 1: Write the proportion equation
56.42 : 84.64 = 25.99 : x - Step 2: Convert to fraction form
56.42/84.64 = 25.99/x - Step 3: Cross multiply
56.42x = 84.64 × 25.99 - Step 4: Simplify right side
56.42x = 2,199.79 - Step 5: Solve for x
x = 2,199.79/56.42 - Step 6: Final answer
x = 38.99
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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.