Finding the Fourth Proportional to 77,183.76, 106,530.12 and 50,278.08
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Solution
The fourth proportional to 77,183.76, 106,530.12 and 50,278.08 is: 69,394.52
Step by Step Solution
- Step 1: Write the proportion equation
77,183.76 : 106,530.12 = 50,278.08 : x - Step 2: Convert to fraction form
77,183.76/106,530.12 = 50,278.08/x - Step 3: Cross multiply
77,183.76x = 106,530.12 × 50,278.08 - Step 4: Simplify right side
77,183.76x = 5,356,129,895.77 - Step 5: Solve for x
x = 5,356,129,895.77/77,183.76 - Step 6: Final answer
x = 69,394.52
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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.