Finding the Fourth Proportional to 75,129.67, 103,683.94 and 43,300.62
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Solution
The fourth proportional to 75,129.67, 103,683.94 and 43,300.62 is: 59,757.73
Step by Step Solution
- Step 1: Write the proportion equation
75,129.67 : 103,683.94 = 43,300.62 : x - Step 2: Convert to fraction form
75,129.67/103,683.94 = 43,300.62/x - Step 3: Cross multiply
75,129.67x = 103,683.94 × 43,300.62 - Step 4: Simplify right side
75,129.67x = 4,489,578,886.04 - Step 5: Solve for x
x = 4,489,578,886.04/75,129.67 - Step 6: Final answer
x = 59,757.73
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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.