Finding the Fourth Proportional to 56.13, 83.69 and 51.62
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Solution
The fourth proportional to 56.13, 83.69 and 51.62 is: 76.95
Step by Step Solution
- Step 1: Write the proportion equation
56.13 : 83.69 = 51.62 : x - Step 2: Convert to fraction form
56.13/83.69 = 51.62/x - Step 3: Cross multiply
56.13x = 83.69 × 51.62 - Step 4: Simplify right side
56.13x = 4,319.40 - Step 5: Solve for x
x = 4,319.40/56.13 - Step 6: Final answer
x = 76.95
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.