Finding the Fourth Proportional to 56.71, 78.34 and 41.99
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Solution
The fourth proportional to 56.71, 78.34 and 41.99 is: 58.00
Step by Step Solution
- Step 1: Write the proportion equation
56.71 : 78.34 = 41.99 : x - Step 2: Convert to fraction form
56.71/78.34 = 41.99/x - Step 3: Cross multiply
56.71x = 78.34 × 41.99 - Step 4: Simplify right side
56.71x = 3,289.29 - Step 5: Solve for x
x = 3,289.29/56.71 - Step 6: Final answer
x = 58.00
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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.