Finding the Fourth Proportional to 75,888.09, 104,732.69 and 56,734.70
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Solution
The fourth proportional to 75,888.09, 104,732.69 and 56,734.70 is: 78,299.20
Step by Step Solution
- Step 1: Write the proportion equation
75,888.09 : 104,732.69 = 56,734.70 : x - Step 2: Convert to fraction form
75,888.09/104,732.69 = 56,734.70/x - Step 3: Cross multiply
75,888.09x = 104,732.69 × 56,734.70 - Step 4: Simplify right side
75,888.09x = 5,941,976,940.01 - Step 5: Solve for x
x = 5,941,976,940.01/75,888.09 - Step 6: Final answer
x = 78,299.20
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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.