Finding the Fourth Proportional to 83,426.11, 115,035.77 and 53,163.49
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Solution
The fourth proportional to 83,426.11, 115,035.77 and 53,163.49 is: 73,306.82
Step by Step Solution
- Step 1: Write the proportion equation
83,426.11 : 115,035.77 = 53,163.49 : x - Step 2: Convert to fraction form
83,426.11/115,035.77 = 53,163.49/x - Step 3: Cross multiply
83,426.11x = 115,035.77 × 53,163.49 - Step 4: Simplify right side
83,426.11x = 6,115,703,008.04 - Step 5: Solve for x
x = 6,115,703,008.04/83,426.11 - Step 6: Final answer
x = 73,306.82
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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.