Finding the Fourth Proportional to 75,305.40, 113,069.70 and 42,091.80
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Solution
The fourth proportional to 75,305.40, 113,069.70 and 42,091.80 is: 63,200.08
Step by Step Solution
- Step 1: Write the proportion equation
75,305.40 : 113,069.70 = 42,091.80 : x - Step 2: Convert to fraction form
75,305.40/113,069.70 = 42,091.80/x - Step 3: Cross multiply
75,305.40x = 113,069.70 × 42,091.80 - Step 4: Simplify right side
75,305.40x = 4,759,307,198.46 - Step 5: Solve for x
x = 4,759,307,198.46/75,305.40 - Step 6: Final answer
x = 63,200.08
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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.