Finding the Fourth Proportional to 70,887.07, 106,230.30 and 39,311.02
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Solution
The fourth proportional to 70,887.07, 106,230.30 and 39,311.02 is: 58,910.91
Step by Step Solution
- Step 1: Write the proportion equation
70,887.07 : 106,230.30 = 39,311.02 : x - Step 2: Convert to fraction form
70,887.07/106,230.30 = 39,311.02/x - Step 3: Cross multiply
70,887.07x = 106,230.30 × 39,311.02 - Step 4: Simplify right side
70,887.07x = 4,176,021,447.91 - Step 5: Solve for x
x = 4,176,021,447.91/70,887.07 - Step 6: Final answer
x = 58,910.91
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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.