Finding the Fourth Proportional to 52.99, 79.27 and 47.99
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Solution
The fourth proportional to 52.99, 79.27 and 47.99 is: 71.79
Step by Step Solution
- Step 1: Write the proportion equation
52.99 : 79.27 = 47.99 : x - Step 2: Convert to fraction form
52.99/79.27 = 47.99/x - Step 3: Cross multiply
52.99x = 79.27 × 47.99 - Step 4: Simplify right side
52.99x = 3,804.17 - Step 5: Solve for x
x = 3,804.17/52.99 - Step 6: Final answer
x = 71.79
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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.