Finding the Fourth Proportional to 72,978.68, 100,717.81 and 44,296.09
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Solution
The fourth proportional to 72,978.68, 100,717.81 and 44,296.09 is: 61,132.99
Step by Step Solution
- Step 1: Write the proportion equation
72,978.68 : 100,717.81 = 44,296.09 : x - Step 2: Convert to fraction form
72,978.68/100,717.81 = 44,296.09/x - Step 3: Cross multiply
72,978.68x = 100,717.81 × 44,296.09 - Step 4: Simplify right side
72,978.68x = 4,461,405,176.36 - Step 5: Solve for x
x = 4,461,405,176.36/72,978.68 - Step 6: Final answer
x = 61,132.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.