Finding the Fourth Proportional to 75,323.05, 112,985.22 and 19,163.22
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Solution
The fourth proportional to 75,323.05, 112,985.22 and 19,163.22 is: 28,744.99
Step by Step Solution
- Step 1: Write the proportion equation
75,323.05 : 112,985.22 = 19,163.22 : x - Step 2: Convert to fraction form
75,323.05/112,985.22 = 19,163.22/x - Step 3: Cross multiply
75,323.05x = 112,985.22 × 19,163.22 - Step 4: Simplify right side
75,323.05x = 2,165,160,627.61 - Step 5: Solve for x
x = 2,165,160,627.61/75,323.05 - Step 6: Final answer
x = 28,744.99
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1.5x scale
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.