Finding the Fourth Proportional to 92,767.27, 127,952.83 and 85,135.19
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Solution
The fourth proportional to 92,767.27, 127,952.83 and 85,135.19 is: 117,425.99
Step by Step Solution
- Step 1: Write the proportion equation
92,767.27 : 127,952.83 = 85,135.19 : x - Step 2: Convert to fraction form
92,767.27/127,952.83 = 85,135.19/x - Step 3: Cross multiply
92,767.27x = 127,952.83 × 85,135.19 - Step 4: Simplify right side
92,767.27x = 10,893,288,439.57 - Step 5: Solve for x
x = 10,893,288,439.57/92,767.27 - Step 6: Final answer
x = 117,425.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.