Finding the Fourth Proportional to 90,028.61, 124,242.00 and 49,744.99
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Solution
The fourth proportional to 90,028.61, 124,242.00 and 49,744.99 is: 68,649.47
Step by Step Solution
- Step 1: Write the proportion equation
90,028.61 : 124,242.00 = 49,744.99 : x - Step 2: Convert to fraction form
90,028.61/124,242.00 = 49,744.99/x - Step 3: Cross multiply
90,028.61x = 124,242.00 × 49,744.99 - Step 4: Simplify right side
90,028.61x = 6,180,416,597.29 - Step 5: Solve for x
x = 6,180,416,597.29/90,028.61 - Step 6: Final answer
x = 68,649.47
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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.