Finding the Fourth Proportional to 75,054.48, 103,530.06 and 49,561.08
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Solution
The fourth proportional to 75,054.48, 103,530.06 and 49,561.08 is: 68,364.49
Step by Step Solution
- Step 1: Write the proportion equation
75,054.48 : 103,530.06 = 49,561.08 : x - Step 2: Convert to fraction form
75,054.48/103,530.06 = 49,561.08/x - Step 3: Cross multiply
75,054.48x = 103,530.06 × 49,561.08 - Step 4: Simplify right side
75,054.48x = 5,131,061,586.06 - Step 5: Solve for x
x = 5,131,061,586.06/75,054.48 - Step 6: Final answer
x = 68,364.49
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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.