Finding the Fourth Proportional to 87,233.86, 130,745.17 and 39,783.99
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Solution
The fourth proportional to 87,233.86, 130,745.17 and 39,783.99 is: 59,627.82
Step by Step Solution
- Step 1: Write the proportion equation
87,233.86 : 130,745.17 = 39,783.99 : x - Step 2: Convert to fraction form
87,233.86/130,745.17 = 39,783.99/x - Step 3: Cross multiply
87,233.86x = 130,745.17 × 39,783.99 - Step 4: Simplify right side
87,233.86x = 5,201,565,075.85 - Step 5: Solve for x
x = 5,201,565,075.85/87,233.86 - Step 6: Final answer
x = 59,627.82
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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.