Finding the Fourth Proportional to 75,271.80, 103,888.62 and 43,436.28
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Solution
The fourth proportional to 75,271.80, 103,888.62 and 43,436.28 is: 59,949.88
Step by Step Solution
- Step 1: Write the proportion equation
75,271.80 : 103,888.62 = 43,436.28 : x - Step 2: Convert to fraction form
75,271.80/103,888.62 = 43,436.28/x - Step 3: Cross multiply
75,271.80x = 103,888.62 × 43,436.28 - Step 4: Simplify right side
75,271.80x = 4,512,535,187.13 - Step 5: Solve for x
x = 4,512,535,187.13/75,271.80 - Step 6: Final answer
x = 59,949.88
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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.