Finding the Fourth Proportional to 72,977.68, 100,716.43 and 44,295.09
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Solution
The fourth proportional to 72,977.68, 100,716.43 and 44,295.09 is: 61,131.61
Step by Step Solution
- Step 1: Write the proportion equation
72,977.68 : 100,716.43 = 44,295.09 : x - Step 2: Convert to fraction form
72,977.68/100,716.43 = 44,295.09/x - Step 3: Cross multiply
72,977.68x = 100,716.43 × 44,295.09 - Step 4: Simplify right side
72,977.68x = 4,461,243,610.02 - Step 5: Solve for x
x = 4,461,243,610.02/72,977.68 - Step 6: Final answer
x = 61,131.61
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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.