Finding the Fourth Proportional to 56.95, 78.43 and 43.99
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Solution
The fourth proportional to 56.95, 78.43 and 43.99 is: 60.58
Step by Step Solution
- Step 1: Write the proportion equation
56.95 : 78.43 = 43.99 : x - Step 2: Convert to fraction form
56.95/78.43 = 43.99/x - Step 3: Cross multiply
56.95x = 78.43 × 43.99 - Step 4: Simplify right side
56.95x = 3,450.14 - Step 5: Solve for x
x = 3,450.14/56.95 - Step 6: Final answer
x = 60.58
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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.