Finding the Fourth Proportional to 81,208.80, 121,811.14 and 22,042.93
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Solution
The fourth proportional to 81,208.80, 121,811.14 and 22,042.93 is: 33,063.84
Step by Step Solution
- Step 1: Write the proportion equation
81,208.80 : 121,811.14 = 22,042.93 : x - Step 2: Convert to fraction form
81,208.80/121,811.14 = 22,042.93/x - Step 3: Cross multiply
81,208.80x = 121,811.14 × 22,042.93 - Step 4: Simplify right side
81,208.80x = 2,685,074,432.24 - Step 5: Solve for x
x = 2,685,074,432.24/81,208.80 - Step 6: Final answer
x = 33,063.84
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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.