Finding the Fourth Proportional to 43.05, 64.44 and 40.08
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Solution
The fourth proportional to 43.05, 64.44 and 40.08 is: 59.99
Step by Step Solution
- Step 1: Write the proportion equation
43.05 : 64.44 = 40.08 : x - Step 2: Convert to fraction form
43.05/64.44 = 40.08/x - Step 3: Cross multiply
43.05x = 64.44 × 40.08 - Step 4: Simplify right side
43.05x = 2,582.76 - Step 5: Solve for x
x = 2,582.76/43.05 - Step 6: Final answer
x = 59.99
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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.