Finding the Fourth Proportional to 83,838.13, 115,655.96 and 49,822.54
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Solution
The fourth proportional to 83,838.13, 115,655.96 and 49,822.54 is: 68,730.94
Step by Step Solution
- Step 1: Write the proportion equation
83,838.13 : 115,655.96 = 49,822.54 : x - Step 2: Convert to fraction form
83,838.13/115,655.96 = 49,822.54/x - Step 3: Cross multiply
83,838.13x = 115,655.96 × 49,822.54 - Step 4: Simplify right side
83,838.13x = 5,762,273,517.50 - Step 5: Solve for x
x = 5,762,273,517.50/83,838.13 - Step 6: Final answer
x = 68,730.94
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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.