Finding the Fourth Proportional to 75,049.46, 103,558.11 and 42,788.24
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Solution
The fourth proportional to 75,049.46, 103,558.11 and 42,788.24 is: 59,041.99
Step by Step Solution
- Step 1: Write the proportion equation
75,049.46 : 103,558.11 = 42,788.24 : x - Step 2: Convert to fraction form
75,049.46/103,558.11 = 42,788.24/x - Step 3: Cross multiply
75,049.46x = 103,558.11 × 42,788.24 - Step 4: Simplify right side
75,049.46x = 4,431,069,264.63 - Step 5: Solve for x
x = 4,431,069,264.63/75,049.46 - Step 6: Final answer
x = 59,041.99
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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.