Finding the Fourth Proportional to 83,492.70, 115,241.70 and 51,643.08
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Solution
The fourth proportional to 83,492.70, 115,241.70 and 51,643.08 is: 71,280.92
Step by Step Solution
- Step 1: Write the proportion equation
83,492.70 : 115,241.70 = 51,643.08 : x - Step 2: Convert to fraction form
83,492.70/115,241.70 = 51,643.08/x - Step 3: Cross multiply
83,492.70x = 115,241.70 × 51,643.08 - Step 4: Simplify right side
83,492.70x = 5,951,436,332.44 - Step 5: Solve for x
x = 5,951,436,332.44/83,492.70 - Step 6: Final answer
x = 71,280.92
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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.