Finding the Fourth Proportional to 90,064.71, 124,224.84 and 63,213.21
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Solution
The fourth proportional to 90,064.71, 124,224.84 and 63,213.21 is: 87,188.99
Step by Step Solution
- Step 1: Write the proportion equation
90,064.71 : 124,224.84 = 63,213.21 : x - Step 2: Convert to fraction form
90,064.71/124,224.84 = 63,213.21/x - Step 3: Cross multiply
90,064.71x = 124,224.84 × 63,213.21 - Step 4: Simplify right side
90,064.71x = 7,852,650,898.14 - Step 5: Solve for x
x = 7,852,650,898.14/90,064.71 - Step 6: Final answer
x = 87,188.99
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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.