Finding the Fourth Proportional to 69,821.97, 104,733.16 and 19,221.66
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Solution
The fourth proportional to 69,821.97, 104,733.16 and 19,221.66 is: 28,832.55
Step by Step Solution
- Step 1: Write the proportion equation
69,821.97 : 104,733.16 = 19,221.66 : x - Step 2: Convert to fraction form
69,821.97/104,733.16 = 19,221.66/x - Step 3: Cross multiply
69,821.97x = 104,733.16 × 19,221.66 - Step 4: Simplify right side
69,821.97x = 2,013,145,192.25 - Step 5: Solve for x
x = 2,013,145,192.25/69,821.97 - Step 6: Final answer
x = 28,832.55
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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.