Finding the Fourth Proportional to 75,162.24, 112,699.56 and 28,418.76
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Solution
The fourth proportional to 75,162.24, 112,699.56 and 28,418.76 is: 42,611.58
Step by Step Solution
- Step 1: Write the proportion equation
75,162.24 : 112,699.56 = 28,418.76 : x - Step 2: Convert to fraction form
75,162.24/112,699.56 = 28,418.76/x - Step 3: Cross multiply
75,162.24x = 112,699.56 × 28,418.76 - Step 4: Simplify right side
75,162.24x = 3,202,781,747.75 - Step 5: Solve for x
x = 3,202,781,747.75/75,162.24 - Step 6: Final answer
x = 42,611.58
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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.