Finding the Fourth Proportional to 73,964.75, 102,071.36 and 40,430.75
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Solution
The fourth proportional to 73,964.75, 102,071.36 and 40,430.75 is: 55,794.44
Step by Step Solution
- Step 1: Write the proportion equation
73,964.75 : 102,071.36 = 40,430.75 : x - Step 2: Convert to fraction form
73,964.75/102,071.36 = 40,430.75/x - Step 3: Cross multiply
73,964.75x = 102,071.36 × 40,430.75 - Step 4: Simplify right side
73,964.75x = 4,126,821,638.32 - Step 5: Solve for x
x = 4,126,821,638.32/73,964.75 - Step 6: Final answer
x = 55,794.44
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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.