Finding the Fourth Proportional to 77,363.09, 106,796.05 and 48,724.84
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Solution
The fourth proportional to 77,363.09, 106,796.05 and 48,724.84 is: 67,262.32
Step by Step Solution
- Step 1: Write the proportion equation
77,363.09 : 106,796.05 = 48,724.84 : x - Step 2: Convert to fraction form
77,363.09/106,796.05 = 48,724.84/x - Step 3: Cross multiply
77,363.09x = 106,796.05 × 48,724.84 - Step 4: Simplify right side
77,363.09x = 5,203,620,715.87 - Step 5: Solve for x
x = 5,203,620,715.87/77,363.09 - Step 6: Final answer
x = 67,262.32
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1.5x scale
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.