Finding the Fourth Proportional to 72,509.24, 100,061.25 and 40,241.99
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Solution
The fourth proportional to 72,509.24, 100,061.25 and 40,241.99 is: 55,533.11
Step by Step Solution
- Step 1: Write the proportion equation
72,509.24 : 100,061.25 = 40,241.99 : x - Step 2: Convert to fraction form
72,509.24/100,061.25 = 40,241.99/x - Step 3: Cross multiply
72,509.24x = 100,061.25 × 40,241.99 - Step 4: Simplify right side
72,509.24x = 4,026,663,545.90 - Step 5: Solve for x
x = 4,026,663,545.90/72,509.24 - Step 6: Final answer
x = 55,533.11
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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.