Finding the Fourth Proportional to 73,886.40, 101,962.08 and 40,351.68
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Solution
The fourth proportional to 73,886.40, 101,962.08 and 40,351.68 is: 55,684.69
Step by Step Solution
- Step 1: Write the proportion equation
73,886.40 : 101,962.08 = 40,351.68 : x - Step 2: Convert to fraction form
73,886.40/101,962.08 = 40,351.68/x - Step 3: Cross multiply
73,886.40x = 101,962.08 × 40,351.68 - Step 4: Simplify right side
73,886.40x = 4,114,341,224.29 - Step 5: Solve for x
x = 4,114,341,224.29/73,886.40 - Step 6: Final answer
x = 55,684.69
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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.