Finding the Fourth Proportional to 75,271.44, 112,907.21 and 19,115.76
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Solution
The fourth proportional to 75,271.44, 112,907.21 and 19,115.76 is: 28,673.65
Step by Step Solution
- Step 1: Write the proportion equation
75,271.44 : 112,907.21 = 19,115.76 : x - Step 2: Convert to fraction form
75,271.44/112,907.21 = 19,115.76/x - Step 3: Cross multiply
75,271.44x = 112,907.21 × 19,115.76 - Step 4: Simplify right side
75,271.44x = 2,158,307,128.63 - Step 5: Solve for x
x = 2,158,307,128.63/75,271.44 - Step 6: Final answer
x = 28,673.65
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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.