Finding the Fourth Proportional to 74,648.99, 111,972.79 and 30,265.19
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Solution
The fourth proportional to 74,648.99, 111,972.79 and 30,265.19 is: 45,397.50
Step by Step Solution
- Step 1: Write the proportion equation
74,648.99 : 111,972.79 = 30,265.19 : x - Step 2: Convert to fraction form
74,648.99/111,972.79 = 30,265.19/x - Step 3: Cross multiply
74,648.99x = 111,972.79 × 30,265.19 - Step 4: Simplify right side
74,648.99x = 3,388,877,612.85 - Step 5: Solve for x
x = 3,388,877,612.85/74,648.99 - Step 6: Final answer
x = 45,397.50
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1.5x scale
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.