Finding the Fourth Proportional to 55.99, 83.86 and 40.74
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Solution
The fourth proportional to 55.99, 83.86 and 40.74 is: 61.02
Step by Step Solution
- Step 1: Write the proportion equation
55.99 : 83.86 = 40.74 : x - Step 2: Convert to fraction form
55.99/83.86 = 40.74/x - Step 3: Cross multiply
55.99x = 83.86 × 40.74 - Step 4: Simplify right side
55.99x = 3,416.46 - Step 5: Solve for x
x = 3,416.46/55.99 - Step 6: Final answer
x = 61.02
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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.