Finding the Fourth Proportional to 74,045.06, 102,198.58 and 51,107.08
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Solution
The fourth proportional to 74,045.06, 102,198.58 and 51,107.08 is: 70,539.09
Step by Step Solution
- Step 1: Write the proportion equation
74,045.06 : 102,198.58 = 51,107.08 : x - Step 2: Convert to fraction form
74,045.06/102,198.58 = 51,107.08/x - Step 3: Cross multiply
74,045.06x = 102,198.58 × 51,107.08 - Step 4: Simplify right side
74,045.06x = 5,223,071,003.95 - Step 5: Solve for x
x = 5,223,071,003.95/74,045.06 - Step 6: Final answer
x = 70,539.09
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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.