Finding the Fourth Proportional to 90,237.14, 135,368.67 and 27,912.50
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Solution
The fourth proportional to 90,237.14, 135,368.67 and 27,912.50 is: 41,872.76
Step by Step Solution
- Step 1: Write the proportion equation
90,237.14 : 135,368.67 = 27,912.50 : x - Step 2: Convert to fraction form
90,237.14/135,368.67 = 27,912.50/x - Step 3: Cross multiply
90,237.14x = 135,368.67 × 27,912.50 - Step 4: Simplify right side
90,237.14x = 3,778,478,001.38 - Step 5: Solve for x
x = 3,778,478,001.38/90,237.14 - Step 6: Final answer
x = 41,872.76
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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.