Finding the Fourth Proportional to 76,819.77, 115,150.74 and 29,423.75
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Solution
The fourth proportional to 76,819.77, 115,150.74 and 29,423.75 is: 44,105.39
Step by Step Solution
- Step 1: Write the proportion equation
76,819.77 : 115,150.74 = 29,423.75 : x - Step 2: Convert to fraction form
76,819.77/115,150.74 = 29,423.75/x - Step 3: Cross multiply
76,819.77x = 115,150.74 × 29,423.75 - Step 4: Simplify right side
76,819.77x = 3,388,166,010.32 - Step 5: Solve for x
x = 3,388,166,010.32/76,819.77 - Step 6: Final answer
x = 44,105.39
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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.