Finding the Fourth Proportional to 83,131.88, 124,724.39 and 29,787.84
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Solution
The fourth proportional to 83,131.88, 124,724.39 and 29,787.84 is: 44,691.28
Step by Step Solution
- Step 1: Write the proportion equation
83,131.88 : 124,724.39 = 29,787.84 : x - Step 2: Convert to fraction form
83,131.88/124,724.39 = 29,787.84/x - Step 3: Cross multiply
83,131.88x = 124,724.39 × 29,787.84 - Step 4: Simplify right side
83,131.88x = 3,715,270,024.48 - Step 5: Solve for x
x = 3,715,270,024.48/83,131.88 - Step 6: Final answer
x = 44,691.28
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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.