Finding the Fourth Proportional to 75,122.64, 103,669.07 and 43,291.26
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Solution
The fourth proportional to 75,122.64, 103,669.07 and 43,291.26 is: 59,741.84
Step by Step Solution
- Step 1: Write the proportion equation
75,122.64 : 103,669.07 = 43,291.26 : x - Step 2: Convert to fraction form
75,122.64/103,669.07 = 43,291.26/x - Step 3: Cross multiply
75,122.64x = 103,669.07 × 43,291.26 - Step 4: Simplify right side
75,122.64x = 4,487,964,446.87 - Step 5: Solve for x
x = 4,487,964,446.87/75,122.64 - Step 6: Final answer
x = 59,741.84
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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.