Finding the Fourth Proportional to 98,528.68, 135,920.86 and 58,222.95
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Solution
The fourth proportional to 98,528.68, 135,920.86 and 58,222.95 is: 80,318.88
Step by Step Solution
- Step 1: Write the proportion equation
98,528.68 : 135,920.86 = 58,222.95 : x - Step 2: Convert to fraction form
98,528.68/135,920.86 = 58,222.95/x - Step 3: Cross multiply
98,528.68x = 135,920.86 × 58,222.95 - Step 4: Simplify right side
98,528.68x = 7,913,713,435.74 - Step 5: Solve for x
x = 7,913,713,435.74/98,528.68 - Step 6: Final answer
x = 80,318.88
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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.