Finding the Fourth Proportional to 81,617.84, 122,427.84 and 46,515.68
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Solution
The fourth proportional to 81,617.84, 122,427.84 and 46,515.68 is: 69,774.14
Step by Step Solution
- Step 1: Write the proportion equation
81,617.84 : 122,427.84 = 46,515.68 : x - Step 2: Convert to fraction form
81,617.84/122,427.84 = 46,515.68/x - Step 3: Cross multiply
81,617.84x = 122,427.84 × 46,515.68 - Step 4: Simplify right side
81,617.84x = 5,694,814,228.53 - Step 5: Solve for x
x = 5,694,814,228.53/81,617.84 - Step 6: Final answer
x = 69,774.14
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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.