Finding the Fourth Proportional to 56.09, 77.56 and 49.17
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Solution
The fourth proportional to 56.09, 77.56 and 49.17 is: 67.99
Step by Step Solution
- Step 1: Write the proportion equation
56.09 : 77.56 = 49.17 : x - Step 2: Convert to fraction form
56.09/77.56 = 49.17/x - Step 3: Cross multiply
56.09x = 77.56 × 49.17 - Step 4: Simplify right side
56.09x = 3,813.47 - Step 5: Solve for x
x = 3,813.47/56.09 - Step 6: Final answer
x = 67.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.