Finding the Fourth Proportional to 98,309.56, 135,678.92 and 62,063.68
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Solution
The fourth proportional to 98,309.56, 135,678.92 and 62,063.68 is: 85,655.28
Step by Step Solution
- Step 1: Write the proportion equation
98,309.56 : 135,678.92 = 62,063.68 : x - Step 2: Convert to fraction form
98,309.56/135,678.92 = 62,063.68/x - Step 3: Cross multiply
98,309.56x = 135,678.92 × 62,063.68 - Step 4: Simplify right side
98,309.56x = 8,420,733,073.63 - Step 5: Solve for x
x = 8,420,733,073.63/98,309.56 - Step 6: Final answer
x = 85,655.28
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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.