Finding the Fourth Proportional to 56.99, 85.30 and 46.15
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Solution
The fourth proportional to 56.99, 85.30 and 46.15 is: 69.07
Step by Step Solution
- Step 1: Write the proportion equation
56.99 : 85.30 = 46.15 : x - Step 2: Convert to fraction form
56.99/85.30 = 46.15/x - Step 3: Cross multiply
56.99x = 85.30 × 46.15 - Step 4: Simplify right side
56.99x = 3,936.27 - Step 5: Solve for x
x = 3,936.27/56.99 - Step 6: Final answer
x = 69.07
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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.