Finding the Fourth Proportional to 74,290.16, 102,463.20 and 51,628.88
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Solution
The fourth proportional to 74,290.16, 102,463.20 and 51,628.88 is: 71,208.09
Step by Step Solution
- Step 1: Write the proportion equation
74,290.16 : 102,463.20 = 51,628.88 : x - Step 2: Convert to fraction form
74,290.16/102,463.20 = 51,628.88/x - Step 3: Cross multiply
74,290.16x = 102,463.20 × 51,628.88 - Step 4: Simplify right side
74,290.16x = 5,290,060,257.22 - Step 5: Solve for x
x = 5,290,060,257.22/74,290.16 - Step 6: Final answer
x = 71,208.09
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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.