Finding the Fourth Proportional to 74,160.99, 111,241.42 and 29,787.75
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Solution
The fourth proportional to 74,160.99, 111,241.42 and 29,787.75 is: 44,681.60
Step by Step Solution
- Step 1: Write the proportion equation
74,160.99 : 111,241.42 = 29,787.75 : x - Step 2: Convert to fraction form
74,160.99/111,241.42 = 29,787.75/x - Step 3: Cross multiply
74,160.99x = 111,241.42 × 29,787.75 - Step 4: Simplify right side
74,160.99x = 3,313,631,534.14 - Step 5: Solve for x
x = 3,313,631,534.14/74,160.99 - Step 6: Final answer
x = 44,681.60
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1.5x scale
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.