Finding the Third Proportional to 51,909.75 and 81,553.75
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Solution
The third proportional to 51,909.75 and 81,553.75 is: 128,126.49
Step by Step Solution
- Step 1: Write the proportion equation
51,909.75 : 81,553.75 = 81,553.75 : x - Step 2: Convert to fraction form
51,909.75/81,553.75 = 81,553.75/x - Step 3: Cross multiply
51,909.75x = 81,553.75 × 81,553.75 - Step 4: Simplify right side
51,909.75x = 6,651,014,139.06 - Step 5: Solve for x
x = 6,651,014,139.06/51,909.75 - Step 6: Final answer
x = 128,126.49
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These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.