Finding the Fourth Proportional to 75,691.49, 113,557.18 and 37,751.90
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Solution
The fourth proportional to 75,691.49, 113,557.18 and 37,751.90 is: 56,637.80
Step by Step Solution
- Step 1: Write the proportion equation
75,691.49 : 113,557.18 = 37,751.90 : x - Step 2: Convert to fraction form
75,691.49/113,557.18 = 37,751.90/x - Step 3: Cross multiply
75,691.49x = 113,557.18 × 37,751.90 - Step 4: Simplify right side
75,691.49x = 4,286,999,303.64 - Step 5: Solve for x
x = 4,286,999,303.64/75,691.49 - Step 6: Final answer
x = 56,637.80
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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.