Finding the Fourth Proportional to 75,000.70, 112,209.45 and 48,756.70
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Solution
The fourth proportional to 75,000.70, 112,209.45 and 48,756.70 is: 72,945.49
Step by Step Solution
- Step 1: Write the proportion equation
75,000.70 : 112,209.45 = 48,756.70 : x - Step 2: Convert to fraction form
75,000.70/112,209.45 = 48,756.70/x - Step 3: Cross multiply
75,000.70x = 112,209.45 × 48,756.70 - Step 4: Simplify right side
75,000.70x = 5,470,962,490.82 - Step 5: Solve for x
x = 5,470,962,490.82/75,000.70 - Step 6: Final answer
x = 72,945.49
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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.