Finding the Fourth Proportional to 83,846.08, 125,767.99 and 20,666.95
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Solution
The fourth proportional to 83,846.08, 125,767.99 and 20,666.95 is: 31,000.15
Step by Step Solution
- Step 1: Write the proportion equation
83,846.08 : 125,767.99 = 20,666.95 : x - Step 2: Convert to fraction form
83,846.08/125,767.99 = 20,666.95/x - Step 3: Cross multiply
83,846.08x = 125,767.99 × 20,666.95 - Step 4: Simplify right side
83,846.08x = 2,599,240,760.93 - Step 5: Solve for x
x = 2,599,240,760.93/83,846.08 - Step 6: Final answer
x = 31,000.15
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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.