Finding the Fourth Proportional to 75,810.94, 113,636.45 and 28,395.09
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Solution
The fourth proportional to 75,810.94, 113,636.45 and 28,395.09 is: 42,562.69
Step by Step Solution
- Step 1: Write the proportion equation
75,810.94 : 113,636.45 = 28,395.09 : x - Step 2: Convert to fraction form
75,810.94/113,636.45 = 28,395.09/x - Step 3: Cross multiply
75,810.94x = 113,636.45 × 28,395.09 - Step 4: Simplify right side
75,810.94x = 3,226,717,296.02 - Step 5: Solve for x
x = 3,226,717,296.02/75,810.94 - Step 6: Final answer
x = 42,562.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.