Finding the Fourth Proportional to 83,193.35, 114,810.95 and 49,221.74
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Solution
The fourth proportional to 83,193.35, 114,810.95 and 49,221.74 is: 67,928.45
Step by Step Solution
- Step 1: Write the proportion equation
83,193.35 : 114,810.95 = 49,221.74 : x - Step 2: Convert to fraction form
83,193.35/114,810.95 = 49,221.74/x - Step 3: Cross multiply
83,193.35x = 114,810.95 × 49,221.74 - Step 4: Simplify right side
83,193.35x = 5,651,195,140.13 - Step 5: Solve for x
x = 5,651,195,140.13/83,193.35 - Step 6: Final answer
x = 67,928.45
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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.