Finding the Fourth Proportional to 70,917.12, 106,310.07 and 39,730.50
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Solution
The fourth proportional to 70,917.12, 106,310.07 and 39,730.50 is: 59,558.99
Step by Step Solution
- Step 1: Write the proportion equation
70,917.12 : 106,310.07 = 39,730.50 : x - Step 2: Convert to fraction form
70,917.12/106,310.07 = 39,730.50/x - Step 3: Cross multiply
70,917.12x = 106,310.07 × 39,730.50 - Step 4: Simplify right side
70,917.12x = 4,223,752,236.14 - Step 5: Solve for x
x = 4,223,752,236.14/70,917.12 - Step 6: Final answer
x = 59,558.99
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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.