Finding the Fourth Proportional to 85,193.52, 127,686.60 and 38,433.84
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Solution
The fourth proportional to 85,193.52, 127,686.60 and 38,433.84 is: 57,603.99
Step by Step Solution
- Step 1: Write the proportion equation
85,193.52 : 127,686.60 = 38,433.84 : x - Step 2: Convert to fraction form
85,193.52/127,686.60 = 38,433.84/x - Step 3: Cross multiply
85,193.52x = 127,686.60 × 38,433.84 - Step 4: Simplify right side
85,193.52x = 4,907,486,354.54 - Step 5: Solve for x
x = 4,907,486,354.54/85,193.52 - Step 6: Final answer
x = 57,603.99
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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.