Finding the Fourth Proportional to 68,959.70, 103,463.85 and 66,529.70
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Solution
The fourth proportional to 68,959.70, 103,463.85 and 66,529.70 is: 99,817.99
Step by Step Solution
- Step 1: Write the proportion equation
68,959.70 : 103,463.85 = 66,529.70 : x - Step 2: Convert to fraction form
68,959.70/103,463.85 = 66,529.70/x - Step 3: Cross multiply
68,959.70x = 103,463.85 × 66,529.70 - Step 4: Simplify right side
68,959.70x = 6,883,418,901.35 - Step 5: Solve for x
x = 6,883,418,901.35/68,959.70 - Step 6: Final answer
x = 99,817.99
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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.