Finding the Fourth Proportional to 74,901.48, 103,364.84 and 40,910.96
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Solution
The fourth proportional to 74,901.48, 103,364.84 and 40,910.96 is: 56,457.56
Step by Step Solution
- Step 1: Write the proportion equation
74,901.48 : 103,364.84 = 40,910.96 : x - Step 2: Convert to fraction form
74,901.48/103,364.84 = 40,910.96/x - Step 3: Cross multiply
74,901.48x = 103,364.84 × 40,910.96 - Step 4: Simplify right side
74,901.48x = 4,228,754,834.65 - Step 5: Solve for x
x = 4,228,754,834.65/74,901.48 - Step 6: Final answer
x = 56,457.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.