Finding the Fourth Proportional to 90,428.42, 135,633.00 and 37,125.99
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Solution
The fourth proportional to 90,428.42, 135,633.00 and 37,125.99 is: 55,685.02
Step by Step Solution
- Step 1: Write the proportion equation
90,428.42 : 135,633.00 = 37,125.99 : x - Step 2: Convert to fraction form
90,428.42/135,633.00 = 37,125.99/x - Step 3: Cross multiply
90,428.42x = 135,633.00 × 37,125.99 - Step 4: Simplify right side
90,428.42x = 5,035,508,537.88 - Step 5: Solve for x
x = 5,035,508,537.88/90,428.42 - Step 6: Final answer
x = 55,685.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.