Finding the Fourth Proportional to 84,655.13, 126,944.21 and 40,335.44
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Solution
The fourth proportional to 84,655.13, 126,944.21 and 40,335.44 is: 60,484.82
Step by Step Solution
- Step 1: Write the proportion equation
84,655.13 : 126,944.21 = 40,335.44 : x - Step 2: Convert to fraction form
84,655.13/126,944.21 = 40,335.44/x - Step 3: Cross multiply
84,655.13x = 126,944.21 × 40,335.44 - Step 4: Simplify right side
84,655.13x = 5,120,350,031.92 - Step 5: Solve for x
x = 5,120,350,031.92/84,655.13 - Step 6: Final answer
x = 60,484.82
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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.