Finding the Fourth Proportional to 77,372.40, 115,976.36 and 49,203.84
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Solution
The fourth proportional to 77,372.40, 115,976.36 and 49,203.84 is: 73,753.46
Step by Step Solution
- Step 1: Write the proportion equation
77,372.40 : 115,976.36 = 49,203.84 : x - Step 2: Convert to fraction form
77,372.40/115,976.36 = 49,203.84/x - Step 3: Cross multiply
77,372.40x = 115,976.36 × 49,203.84 - Step 4: Simplify right side
77,372.40x = 5,706,482,261.22 - Step 5: Solve for x
x = 5,706,482,261.22/77,372.40 - Step 6: Final answer
x = 73,753.46
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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.