Finding the Fourth Proportional to 98,432.84, 135,836.52 and 53,720.84
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Solution
The fourth proportional to 98,432.84, 135,836.52 and 53,720.84 is: 74,134.32
Step by Step Solution
- Step 1: Write the proportion equation
98,432.84 : 135,836.52 = 53,720.84 : x - Step 2: Convert to fraction form
98,432.84/135,836.52 = 53,720.84/x - Step 3: Cross multiply
98,432.84x = 135,836.52 × 53,720.84 - Step 4: Simplify right side
98,432.84x = 7,297,251,957.08 - Step 5: Solve for x
x = 7,297,251,957.08/98,432.84 - Step 6: Final answer
x = 74,134.32
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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.