Finding the Fourth Proportional to 75,663.46, 104,323.06 and 47,319.94
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Solution
The fourth proportional to 75,663.46, 104,323.06 and 47,319.94 is: 65,243.66
Step by Step Solution
- Step 1: Write the proportion equation
75,663.46 : 104,323.06 = 47,319.94 : x - Step 2: Convert to fraction form
75,663.46/104,323.06 = 47,319.94/x - Step 3: Cross multiply
75,663.46x = 104,323.06 × 47,319.94 - Step 4: Simplify right side
75,663.46x = 4,936,560,560.71 - Step 5: Solve for x
x = 4,936,560,560.71/75,663.46 - Step 6: Final answer
x = 65,243.66
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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.