Finding the Fourth Proportional to 73,125.90, 100,913.99 and 39,591.90
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Solution
The fourth proportional to 73,125.90, 100,913.99 and 39,591.90 is: 54,636.95
Step by Step Solution
- Step 1: Write the proportion equation
73,125.90 : 100,913.99 = 39,591.90 : x - Step 2: Convert to fraction form
73,125.90/100,913.99 = 39,591.90/x - Step 3: Cross multiply
73,125.90x = 100,913.99 × 39,591.90 - Step 4: Simplify right side
73,125.90x = 3,995,376,402.72 - Step 5: Solve for x
x = 3,995,376,402.72/73,125.90 - Step 6: Final answer
x = 54,636.95
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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.