Finding the Fourth Proportional to 73,017.68, 100,764.36 and 39,483.68
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Solution
The fourth proportional to 73,017.68, 100,764.36 and 39,483.68 is: 54,487.45
Step by Step Solution
- Step 1: Write the proportion equation
73,017.68 : 100,764.36 = 39,483.68 : x - Step 2: Convert to fraction form
73,017.68/100,764.36 = 39,483.68/x - Step 3: Cross multiply
73,017.68x = 100,764.36 × 39,483.68 - Step 4: Simplify right side
73,017.68x = 3,978,547,241.82 - Step 5: Solve for x
x = 3,978,547,241.82/73,017.68 - Step 6: Final answer
x = 54,487.45
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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.