Finding the Fourth Proportional to 73,906.68, 101,991.06 and 40,372.68
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Solution
The fourth proportional to 73,906.68, 101,991.06 and 40,372.68 is: 55,714.21
Step by Step Solution
- Step 1: Write the proportion equation
73,906.68 : 101,991.06 = 40,372.68 : x - Step 2: Convert to fraction form
73,906.68/101,991.06 = 40,372.68/x - Step 3: Cross multiply
73,906.68x = 101,991.06 × 40,372.68 - Step 4: Simplify right side
73,906.68x = 4,117,652,428.24 - Step 5: Solve for x
x = 4,117,652,428.24/73,906.68 - Step 6: Final answer
x = 55,714.21
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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.