Finding the Fourth Proportional to 86,390.50, 119,220.09 and 48,148.99
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Solution
The fourth proportional to 86,390.50, 119,220.09 and 48,148.99 is: 66,446.27
Step by Step Solution
- Step 1: Write the proportion equation
86,390.50 : 119,220.09 = 48,148.99 : x - Step 2: Convert to fraction form
86,390.50/119,220.09 = 48,148.99/x - Step 3: Cross multiply
86,390.50x = 119,220.09 × 48,148.99 - Step 4: Simplify right side
86,390.50x = 5,740,326,084.36 - Step 5: Solve for x
x = 5,740,326,084.36/86,390.50 - Step 6: Final answer
x = 66,446.27
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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.