Finding the Fourth Proportional to 86,793.96, 130,101.65 and 39,441.99
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Solution
The fourth proportional to 86,793.96, 130,101.65 and 39,441.99 is: 59,122.41
Step by Step Solution
- Step 1: Write the proportion equation
86,793.96 : 130,101.65 = 39,441.99 : x - Step 2: Convert to fraction form
86,793.96/130,101.65 = 39,441.99/x - Step 3: Cross multiply
86,793.96x = 130,101.65 × 39,441.99 - Step 4: Simplify right side
86,793.96x = 5,131,467,781.07 - Step 5: Solve for x
x = 5,131,467,781.07/86,793.96 - Step 6: Final answer
x = 59,122.41
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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.