Finding the Fourth Proportional to 84,415.82, 126,560.84 and 28,222.68
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Solution
The fourth proportional to 84,415.82, 126,560.84 and 28,222.68 is: 42,312.99
Step by Step Solution
- Step 1: Write the proportion equation
84,415.82 : 126,560.84 = 28,222.68 : x - Step 2: Convert to fraction form
84,415.82/126,560.84 = 28,222.68/x - Step 3: Cross multiply
84,415.82x = 126,560.84 × 28,222.68 - Step 4: Simplify right side
84,415.82x = 3,571,885,946.74 - Step 5: Solve for x
x = 3,571,885,946.74/84,415.82 - Step 6: Final answer
x = 42,312.99
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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.