Finding the Fourth Proportional to 73,112.49, 100,889.10 and 42,894.63
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Solution
The fourth proportional to 73,112.49, 100,889.10 and 42,894.63 is: 59,190.99
Step by Step Solution
- Step 1: Write the proportion equation
73,112.49 : 100,889.10 = 42,894.63 : x - Step 2: Convert to fraction form
73,112.49/100,889.10 = 42,894.63/x - Step 3: Cross multiply
73,112.49x = 100,889.10 × 42,894.63 - Step 4: Simplify right side
73,112.49x = 4,327,600,615.53 - Step 5: Solve for x
x = 4,327,600,615.53/73,112.49 - Step 6: Final answer
x = 59,190.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.