Finding the Fourth Proportional to 73,225.74, 109,838.58 and 20,628.36
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Solution
The fourth proportional to 73,225.74, 109,838.58 and 20,628.36 is: 30,942.53
Step by Step Solution
- Step 1: Write the proportion equation
73,225.74 : 109,838.58 = 20,628.36 : x - Step 2: Convert to fraction form
73,225.74/109,838.58 = 20,628.36/x - Step 3: Cross multiply
73,225.74x = 109,838.58 × 20,628.36 - Step 4: Simplify right side
73,225.74x = 2,265,789,770.13 - Step 5: Solve for x
x = 2,265,789,770.13/73,225.74 - Step 6: Final answer
x = 30,942.53
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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.