Finding the Fourth Proportional to 91,916.08, 126,840.84 and 56,165.92
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Solution
The fourth proportional to 91,916.08, 126,840.84 and 56,165.92 is: 77,506.92
Step by Step Solution
- Step 1: Write the proportion equation
91,916.08 : 126,840.84 = 56,165.92 : x - Step 2: Convert to fraction form
91,916.08/126,840.84 = 56,165.92/x - Step 3: Cross multiply
91,916.08x = 126,840.84 × 56,165.92 - Step 4: Simplify right side
91,916.08x = 7,124,132,472.17 - Step 5: Solve for x
x = 7,124,132,472.17/91,916.08 - Step 6: Final answer
x = 77,506.92
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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.