Finding the Fourth Proportional to 71,361.30, 107,011.08 and 38,074.08
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Solution
The fourth proportional to 71,361.30, 107,011.08 and 38,074.08 is: 57,094.65
Step by Step Solution
- Step 1: Write the proportion equation
71,361.30 : 107,011.08 = 38,074.08 : x - Step 2: Convert to fraction form
71,361.30/107,011.08 = 38,074.08/x - Step 3: Cross multiply
71,361.30x = 107,011.08 × 38,074.08 - Step 4: Simplify right side
71,361.30x = 4,074,348,420.81 - Step 5: Solve for x
x = 4,074,348,420.81/71,361.30 - Step 6: Final answer
x = 57,094.65
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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.