Finding the Fourth Proportional to 74,033.75, 102,169.01 and 40,499.75
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Solution
The fourth proportional to 74,033.75, 102,169.01 and 40,499.75 is: 55,890.99
Step by Step Solution
- Step 1: Write the proportion equation
74,033.75 : 102,169.01 = 40,499.75 : x - Step 2: Convert to fraction form
74,033.75/102,169.01 = 40,499.75/x - Step 3: Cross multiply
74,033.75x = 102,169.01 × 40,499.75 - Step 4: Simplify right side
74,033.75x = 4,137,819,362.75 - Step 5: Solve for x
x = 4,137,819,362.75/74,033.75 - Step 6: Final answer
x = 55,890.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.