Finding the Fourth Proportional to 91,108.53, 136,702.26 and 48,939.41
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Solution
The fourth proportional to 91,108.53, 136,702.26 and 48,939.41 is: 73,430.31
Step by Step Solution
- Step 1: Write the proportion equation
91,108.53 : 136,702.26 = 48,939.41 : x - Step 2: Convert to fraction form
91,108.53/136,702.26 = 48,939.41/x - Step 3: Cross multiply
91,108.53x = 136,702.26 × 48,939.41 - Step 4: Simplify right side
91,108.53x = 6,690,127,779.19 - Step 5: Solve for x
x = 6,690,127,779.19/91,108.53 - Step 6: Final answer
x = 73,430.31
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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.