Finding the Fourth Proportional to 75,223.68, 103,804.68 and 43,390.68
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Solution
The fourth proportional to 75,223.68, 103,804.68 and 43,390.68 is: 59,876.83
Step by Step Solution
- Step 1: Write the proportion equation
75,223.68 : 103,804.68 = 43,390.68 : x - Step 2: Convert to fraction form
75,223.68/103,804.68 = 43,390.68/x - Step 3: Cross multiply
75,223.68x = 103,804.68 × 43,390.68 - Step 4: Simplify right side
75,223.68x = 4,504,155,652.38 - Step 5: Solve for x
x = 4,504,155,652.38/75,223.68 - Step 6: Final answer
x = 59,876.83
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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.