Finding the Fourth Proportional to 74,406.94, 102,683.39 and 42,586.09
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Solution
The fourth proportional to 74,406.94, 102,683.39 and 42,586.09 is: 58,769.84
Step by Step Solution
- Step 1: Write the proportion equation
74,406.94 : 102,683.39 = 42,586.09 : x - Step 2: Convert to fraction form
74,406.94/102,683.39 = 42,586.09/x - Step 3: Cross multiply
74,406.94x = 102,683.39 × 42,586.09 - Step 4: Simplify right side
74,406.94x = 4,372,884,088.05 - Step 5: Solve for x
x = 4,372,884,088.05/74,406.94 - Step 6: Final answer
x = 58,769.84
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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.