Finding the Fourth Proportional to 96,571.20, 133,268.40 and 54,130.08
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Solution
The fourth proportional to 96,571.20, 133,268.40 and 54,130.08 is: 74,699.59
Step by Step Solution
- Step 1: Write the proportion equation
96,571.20 : 133,268.40 = 54,130.08 : x - Step 2: Convert to fraction form
96,571.20/133,268.40 = 54,130.08/x - Step 3: Cross multiply
96,571.20x = 133,268.40 × 54,130.08 - Step 4: Simplify right side
96,571.20x = 7,213,829,153.47 - Step 5: Solve for x
x = 7,213,829,153.47/96,571.20 - Step 6: Final answer
x = 74,699.59
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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.