Finding the Fourth Proportional to 81,624.96, 122,320.80 and 46,492.08
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Solution
The fourth proportional to 81,624.96, 122,320.80 and 46,492.08 is: 69,671.68
Step by Step Solution
- Step 1: Write the proportion equation
81,624.96 : 122,320.80 = 46,492.08 : x - Step 2: Convert to fraction form
81,624.96/122,320.80 = 46,492.08/x - Step 3: Cross multiply
81,624.96x = 122,320.80 × 46,492.08 - Step 4: Simplify right side
81,624.96x = 5,686,948,419.26 - Step 5: Solve for x
x = 5,686,948,419.26/81,624.96 - Step 6: Final answer
x = 69,671.68
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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.