Finding the Fourth Proportional to 75,323.54, 112,985.98 and 19,163.70
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Solution
The fourth proportional to 75,323.54, 112,985.98 and 19,163.70 is: 28,745.72
Step by Step Solution
- Step 1: Write the proportion equation
75,323.54 : 112,985.98 = 19,163.70 : x - Step 2: Convert to fraction form
75,323.54/112,985.98 = 19,163.70/x - Step 3: Cross multiply
75,323.54x = 112,985.98 × 19,163.70 - Step 4: Simplify right side
75,323.54x = 2,165,229,377.02 - Step 5: Solve for x
x = 2,165,229,377.02/75,323.54 - Step 6: Final answer
x = 28,745.72
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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.