Finding the Fourth Proportional to 84,292.13, 126,438.19 and 21,962.63
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Solution
The fourth proportional to 84,292.13, 126,438.19 and 21,962.63 is: 32,943.94
Step by Step Solution
- Step 1: Write the proportion equation
84,292.13 : 126,438.19 = 21,962.63 : x - Step 2: Convert to fraction form
84,292.13/126,438.19 = 21,962.63/x - Step 3: Cross multiply
84,292.13x = 126,438.19 × 21,962.63 - Step 4: Simplify right side
84,292.13x = 2,776,915,184.84 - Step 5: Solve for x
x = 2,776,915,184.84/84,292.13 - Step 6: Final answer
x = 32,943.94
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1.5x scale
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.