Finding the Fourth Proportional to 83,838.06, 125,755.27 and 39,440.21
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Solution
The fourth proportional to 83,838.06, 125,755.27 and 39,440.21 is: 59,159.45
Step by Step Solution
- Step 1: Write the proportion equation
83,838.06 : 125,755.27 = 39,440.21 : x - Step 2: Convert to fraction form
83,838.06/125,755.27 = 39,440.21/x - Step 3: Cross multiply
83,838.06x = 125,755.27 × 39,440.21 - Step 4: Simplify right side
83,838.06x = 4,959,813,530.03 - Step 5: Solve for x
x = 4,959,813,530.03/83,838.06 - Step 6: Final answer
x = 59,159.45
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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.