Finding the Fourth Proportional to 90,462.77, 135,472.62 and 63,743.09
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Solution
The fourth proportional to 90,462.77, 135,472.62 and 63,743.09 is: 95,458.54
Step by Step Solution
- Step 1: Write the proportion equation
90,462.77 : 135,472.62 = 63,743.09 : x - Step 2: Convert to fraction form
90,462.77/135,472.62 = 63,743.09/x - Step 3: Cross multiply
90,462.77x = 135,472.62 × 63,743.09 - Step 4: Simplify right side
90,462.77x = 8,635,443,747.88 - Step 5: Solve for x
x = 8,635,443,747.88/90,462.77 - Step 6: Final answer
x = 95,458.54
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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.