Finding the Fourth Proportional to 68,015.80, 102,023.70 and 26,435.80
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Solution
The fourth proportional to 68,015.80, 102,023.70 and 26,435.80 is: 39,653.70
Step by Step Solution
- Step 1: Write the proportion equation
68,015.80 : 102,023.70 = 26,435.80 : x - Step 2: Convert to fraction form
68,015.80/102,023.70 = 26,435.80/x - Step 3: Cross multiply
68,015.80x = 102,023.70 × 26,435.80 - Step 4: Simplify right side
68,015.80x = 2,697,078,128.46 - Step 5: Solve for x
x = 2,697,078,128.46/68,015.80 - Step 6: Final answer
x = 39,653.70
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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.