Finding the Fourth Proportional to 74,664.99, 102,970.04 and 49,470.75
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Solution
The fourth proportional to 74,664.99, 102,970.04 and 49,470.75 is: 68,224.81
Step by Step Solution
- Step 1: Write the proportion equation
74,664.99 : 102,970.04 = 49,470.75 : x - Step 2: Convert to fraction form
74,664.99/102,970.04 = 49,470.75/x - Step 3: Cross multiply
74,664.99x = 102,970.04 × 49,470.75 - Step 4: Simplify right side
74,664.99x = 5,094,004,858.98 - Step 5: Solve for x
x = 5,094,004,858.98/74,664.99 - Step 6: Final answer
x = 68,224.81
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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.