Finding the Fourth Proportional to 69,728.97, 104,535.15 and 32,315.85
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Solution
The fourth proportional to 69,728.97, 104,535.15 and 32,315.85 is: 48,446.75
Step by Step Solution
- Step 1: Write the proportion equation
69,728.97 : 104,535.15 = 32,315.85 : x - Step 2: Convert to fraction form
69,728.97/104,535.15 = 32,315.85/x - Step 3: Cross multiply
69,728.97x = 104,535.15 × 32,315.85 - Step 4: Simplify right side
69,728.97x = 3,378,142,227.13 - Step 5: Solve for x
x = 3,378,142,227.13/69,728.97 - Step 6: Final answer
x = 48,446.75
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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.