Finding the Fourth Proportional to 75,182.76, 112,791.56 and 21,876.00
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Solution
The fourth proportional to 75,182.76, 112,791.56 and 21,876.00 is: 32,819.07
Step by Step Solution
- Step 1: Write the proportion equation
75,182.76 : 112,791.56 = 21,876.00 : x - Step 2: Convert to fraction form
75,182.76/112,791.56 = 21,876.00/x - Step 3: Cross multiply
75,182.76x = 112,791.56 × 21,876.00 - Step 4: Simplify right side
75,182.76x = 2,467,428,136.02 - Step 5: Solve for x
x = 2,467,428,136.02/75,182.76 - Step 6: Final answer
x = 32,819.07
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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.