Finding the Fourth Proportional to 96,644.88, 133,378.08 and 54,211.44
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Solution
The fourth proportional to 96,644.88, 133,378.08 and 54,211.44 is: 74,816.36
Step by Step Solution
- Step 1: Write the proportion equation
96,644.88 : 133,378.08 = 54,211.44 : x - Step 2: Convert to fraction form
96,644.88/133,378.08 = 54,211.44/x - Step 3: Cross multiply
96,644.88x = 133,378.08 × 54,211.44 - Step 4: Simplify right side
96,644.88x = 7,230,617,781.24 - Step 5: Solve for x
x = 7,230,617,781.24/96,644.88 - Step 6: Final answer
x = 74,816.36
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1.5x scale
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.