Finding the Fourth Proportional to 84,347.68, 126,677.04 and 66,929.44
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Solution
The fourth proportional to 84,347.68, 126,677.04 and 66,929.44 is: 100,517.56
Step by Step Solution
- Step 1: Write the proportion equation
84,347.68 : 126,677.04 = 66,929.44 : x - Step 2: Convert to fraction form
84,347.68/126,677.04 = 66,929.44/x - Step 3: Cross multiply
84,347.68x = 126,677.04 × 66,929.44 - Step 4: Simplify right side
84,347.68x = 8,478,423,348.06 - Step 5: Solve for x
x = 8,478,423,348.06/84,347.68 - Step 6: Final answer
x = 100,517.56
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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.