Finding the Fourth Proportional to 90,331.21, 124,646.99 and 50,034.98
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Solution
The fourth proportional to 90,331.21, 124,646.99 and 50,034.98 is: 69,042.68
Step by Step Solution
- Step 1: Write the proportion equation
90,331.21 : 124,646.99 = 50,034.98 : x - Step 2: Convert to fraction form
90,331.21/124,646.99 = 50,034.98/x - Step 3: Cross multiply
90,331.21x = 124,646.99 × 50,034.98 - Step 4: Simplify right side
90,331.21x = 6,236,708,778.30 - Step 5: Solve for x
x = 6,236,708,778.30/90,331.21 - Step 6: Final answer
x = 69,042.68
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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.