Finding the Fourth Proportional to 99,746.70, 149,620.05 and 40,624.80
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Solution
The fourth proportional to 99,746.70, 149,620.05 and 40,624.80 is: 60,937.20
Step by Step Solution
- Step 1: Write the proportion equation
99,746.70 : 149,620.05 = 40,624.80 : x - Step 2: Convert to fraction form
99,746.70/149,620.05 = 40,624.80/x - Step 3: Cross multiply
99,746.70x = 149,620.05 × 40,624.80 - Step 4: Simplify right side
99,746.70x = 6,078,284,607.24 - Step 5: Solve for x
x = 6,078,284,607.24/99,746.70 - Step 6: Final answer
x = 60,937.20
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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.