Finding the Fourth Proportional to 71,783.12, 107,691.72 and 22,535.12
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Solution
The fourth proportional to 71,783.12, 107,691.72 and 22,535.12 is: 33,808.03
Step by Step Solution
- Step 1: Write the proportion equation
71,783.12 : 107,691.72 = 22,535.12 : x - Step 2: Convert to fraction form
71,783.12/107,691.72 = 22,535.12/x - Step 3: Cross multiply
71,783.12x = 107,691.72 × 22,535.12 - Step 4: Simplify right side
71,783.12x = 2,426,845,833.21 - Step 5: Solve for x
x = 2,426,845,833.21/71,783.12 - Step 6: Final answer
x = 33,808.03
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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.