Finding the Fourth Proportional to 73,007.75, 100,750.70 and 39,473.75
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Solution
The fourth proportional to 73,007.75, 100,750.70 and 39,473.75 is: 54,473.78
Step by Step Solution
- Step 1: Write the proportion equation
73,007.75 : 100,750.70 = 39,473.75 : x - Step 2: Convert to fraction form
73,007.75/100,750.70 = 39,473.75/x - Step 3: Cross multiply
73,007.75x = 100,750.70 × 39,473.75 - Step 4: Simplify right side
73,007.75x = 3,977,007,746.76 - Step 5: Solve for x
x = 3,977,007,746.76/73,007.75 - Step 6: Final answer
x = 54,473.78
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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.