Finding the Fourth Proportional to 75,647.20, 104,384.08 and 43,811.68
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Solution
The fourth proportional to 75,647.20, 104,384.08 and 43,811.68 is: 60,454.87
Step by Step Solution
- Step 1: Write the proportion equation
75,647.20 : 104,384.08 = 43,811.68 : x - Step 2: Convert to fraction form
75,647.20/104,384.08 = 43,811.68/x - Step 3: Cross multiply
75,647.20x = 104,384.08 × 43,811.68 - Step 4: Simplify right side
75,647.20x = 4,573,241,910.05 - Step 5: Solve for x
x = 4,573,241,910.05/75,647.20 - Step 6: Final answer
x = 60,454.87
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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.