Finding the Fourth Proportional to 74,295.16, 102,470.10 and 51,633.88
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Solution
The fourth proportional to 74,295.16, 102,470.10 and 51,633.88 is: 71,214.99
Step by Step Solution
- Step 1: Write the proportion equation
74,295.16 : 102,470.10 = 51,633.88 : x - Step 2: Convert to fraction form
74,295.16/102,470.10 = 51,633.88/x - Step 3: Cross multiply
74,295.16x = 102,470.10 × 51,633.88 - Step 4: Simplify right side
74,295.16x = 5,290,928,846.99 - Step 5: Solve for x
x = 5,290,928,846.99/74,295.16 - Step 6: Final answer
x = 71,214.99
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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.