Finding the Fourth Proportional to 84,025.96, 115,866.66 and 75,563.08
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Solution
The fourth proportional to 84,025.96, 115,866.66 and 75,563.08 is: 104,196.87
Step by Step Solution
- Step 1: Write the proportion equation
84,025.96 : 115,866.66 = 75,563.08 : x - Step 2: Convert to fraction form
84,025.96/115,866.66 = 75,563.08/x - Step 3: Cross multiply
84,025.96x = 115,866.66 × 75,563.08 - Step 4: Simplify right side
84,025.96x = 8,755,241,698.91 - Step 5: Solve for x
x = 8,755,241,698.91/84,025.96 - Step 6: Final answer
x = 104,196.87
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1.5x scale
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.