Finding the Fourth Proportional to 74,238.22, 102,431.04 and 41,973.49
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Solution
The fourth proportional to 74,238.22, 102,431.04 and 41,973.49 is: 57,913.41
Step by Step Solution
- Step 1: Write the proportion equation
74,238.22 : 102,431.04 = 41,973.49 : x - Step 2: Convert to fraction form
74,238.22/102,431.04 = 41,973.49/x - Step 3: Cross multiply
74,238.22x = 102,431.04 × 41,973.49 - Step 4: Simplify right side
74,238.22x = 4,299,388,233.13 - Step 5: Solve for x
x = 4,299,388,233.13/74,238.22 - Step 6: Final answer
x = 57,913.41
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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.