Finding the Fourth Proportional to 73,489.84, 101,415.48 and 39,955.84
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Solution
The fourth proportional to 73,489.84, 101,415.48 and 39,955.84 is: 55,138.79
Step by Step Solution
- Step 1: Write the proportion equation
73,489.84 : 101,415.48 = 39,955.84 : x - Step 2: Convert to fraction form
73,489.84/101,415.48 = 39,955.84/x - Step 3: Cross multiply
73,489.84x = 101,415.48 × 39,955.84 - Step 4: Simplify right side
73,489.84x = 4,052,140,692.40 - Step 5: Solve for x
x = 4,052,140,692.40/73,489.84 - Step 6: Final answer
x = 55,138.79
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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.