Finding the Fourth Proportional to 81,176.52, 121,764.37 and 22,012.09
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Solution
The fourth proportional to 81,176.52, 121,764.37 and 22,012.09 is: 33,018.02
Step by Step Solution
- Step 1: Write the proportion equation
81,176.52 : 121,764.37 = 22,012.09 : x - Step 2: Convert to fraction form
81,176.52/121,764.37 = 22,012.09/x - Step 3: Cross multiply
81,176.52x = 121,764.37 × 22,012.09 - Step 4: Simplify right side
81,176.52x = 2,680,288,161.17 - Step 5: Solve for x
x = 2,680,288,161.17/81,176.52 - Step 6: Final answer
x = 33,018.02
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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.