Finding the Fourth Proportional to 73,932.68, 102,015.30 and 42,102.20
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Solution
The fourth proportional to 73,932.68, 102,015.30 and 42,102.20 is: 58,094.32
Step by Step Solution
- Step 1: Write the proportion equation
73,932.68 : 102,015.30 = 42,102.20 : x - Step 2: Convert to fraction form
73,932.68/102,015.30 = 42,102.20/x - Step 3: Cross multiply
73,932.68x = 102,015.30 × 42,102.20 - Step 4: Simplify right side
73,932.68x = 4,295,068,563.66 - Step 5: Solve for x
x = 4,295,068,563.66/73,932.68 - Step 6: Final answer
x = 58,094.32
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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.