Finding the Fourth Proportional to 76,802.80, 115,220.40 and 32,406.70
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Solution
The fourth proportional to 76,802.80, 115,220.40 and 32,406.70 is: 48,616.89
Step by Step Solution
- Step 1: Write the proportion equation
76,802.80 : 115,220.40 = 32,406.70 : x - Step 2: Convert to fraction form
76,802.80/115,220.40 = 32,406.70/x - Step 3: Cross multiply
76,802.80x = 115,220.40 × 32,406.70 - Step 4: Simplify right side
76,802.80x = 3,733,912,936.68 - Step 5: Solve for x
x = 3,733,912,936.68/76,802.80 - Step 6: Final answer
x = 48,616.89
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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.