Finding the Fourth Proportional to 88,694.10, 122,318.28 and 56,856.96
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Solution
The fourth proportional to 88,694.10, 122,318.28 and 56,856.96 is: 78,411.59
Step by Step Solution
- Step 1: Write the proportion equation
88,694.10 : 122,318.28 = 56,856.96 : x - Step 2: Convert to fraction form
88,694.10/122,318.28 = 56,856.96/x - Step 3: Cross multiply
88,694.10x = 122,318.28 × 56,856.96 - Step 4: Simplify right side
88,694.10x = 6,954,645,553.23 - Step 5: Solve for x
x = 6,954,645,553.23/88,694.10 - Step 6: Final answer
x = 78,411.59
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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.