Finding the Fourth Proportional to 71,448.72, 107,148.44 and 29,316.84
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Solution
The fourth proportional to 71,448.72, 107,148.44 and 29,316.84 is: 43,965.15
Step by Step Solution
- Step 1: Write the proportion equation
71,448.72 : 107,148.44 = 29,316.84 : x - Step 2: Convert to fraction form
71,448.72/107,148.44 = 29,316.84/x - Step 3: Cross multiply
71,448.72x = 107,148.44 × 29,316.84 - Step 4: Simplify right side
71,448.72x = 3,141,253,671.73 - Step 5: Solve for x
x = 3,141,253,671.73/71,448.72 - Step 6: Final answer
x = 43,965.15
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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.