Finding the Fourth Proportional to 75,270.18, 112,949.01 and 28,526.70
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Solution
The fourth proportional to 75,270.18, 112,949.01 and 28,526.70 is: 42,806.63
Step by Step Solution
- Step 1: Write the proportion equation
75,270.18 : 112,949.01 = 28,526.70 : x - Step 2: Convert to fraction form
75,270.18/112,949.01 = 28,526.70/x - Step 3: Cross multiply
75,270.18x = 112,949.01 × 28,526.70 - Step 4: Simplify right side
75,270.18x = 3,222,062,523.57 - Step 5: Solve for x
x = 3,222,062,523.57/75,270.18 - Step 6: Final answer
x = 42,806.63
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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.