Finding the Fourth Proportional to 74,012.94, 102,135.33 and 42,192.09
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Solution
The fourth proportional to 74,012.94, 102,135.33 and 42,192.09 is: 58,223.64
Step by Step Solution
- Step 1: Write the proportion equation
74,012.94 : 102,135.33 = 42,192.09 : x - Step 2: Convert to fraction form
74,012.94/102,135.33 = 42,192.09/x - Step 3: Cross multiply
74,012.94x = 102,135.33 × 42,192.09 - Step 4: Simplify right side
74,012.94x = 4,309,303,035.54 - Step 5: Solve for x
x = 4,309,303,035.54/74,012.94 - Step 6: Final answer
x = 58,223.64
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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.