Finding the Fourth Proportional to 92,165.75, 138,248.49 and 28,991.42
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Solution
The fourth proportional to 92,165.75, 138,248.49 and 28,991.42 is: 43,487.09
Step by Step Solution
- Step 1: Write the proportion equation
92,165.75 : 138,248.49 = 28,991.42 : x - Step 2: Convert to fraction form
92,165.75/138,248.49 = 28,991.42/x - Step 3: Cross multiply
92,165.75x = 138,248.49 × 28,991.42 - Step 4: Simplify right side
92,165.75x = 4,008,020,037.96 - Step 5: Solve for x
x = 4,008,020,037.96/92,165.75 - Step 6: Final answer
x = 43,487.09
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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.