Finding the Fourth Proportional to 73,819.30, 110,728.95 and 51,657.70
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Solution
The fourth proportional to 73,819.30, 110,728.95 and 51,657.70 is: 77,486.55
Step by Step Solution
- Step 1: Write the proportion equation
73,819.30 : 110,728.95 = 51,657.70 : x - Step 2: Convert to fraction form
73,819.30/110,728.95 = 51,657.70/x - Step 3: Cross multiply
73,819.30x = 110,728.95 × 51,657.70 - Step 4: Simplify right side
73,819.30x = 5,720,002,880.42 - Step 5: Solve for x
x = 5,720,002,880.42/73,819.30 - Step 6: Final answer
x = 77,486.55
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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.