Finding the Fourth Proportional to 83,489.16, 115,219.76 and 49,517.76
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Solution
The fourth proportional to 83,489.16, 115,219.76 and 49,517.76 is: 68,337.31
Step by Step Solution
- Step 1: Write the proportion equation
83,489.16 : 115,219.76 = 49,517.76 : x - Step 2: Convert to fraction form
83,489.16/115,219.76 = 49,517.76/x - Step 3: Cross multiply
83,489.16x = 115,219.76 × 49,517.76 - Step 4: Simplify right side
83,489.16x = 5,705,424,422.94 - Step 5: Solve for x
x = 5,705,424,422.94/83,489.16 - Step 6: Final answer
x = 68,337.31
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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.