Finding the Fourth Proportional to 98,864.28, 136,432.08 and 53,541.54
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Solution
The fourth proportional to 98,864.28, 136,432.08 and 53,541.54 is: 73,886.99
Step by Step Solution
- Step 1: Write the proportion equation
98,864.28 : 136,432.08 = 53,541.54 : x - Step 2: Convert to fraction form
98,864.28/136,432.08 = 53,541.54/x - Step 3: Cross multiply
98,864.28x = 136,432.08 × 53,541.54 - Step 4: Simplify right side
98,864.28x = 7,304,783,668.60 - Step 5: Solve for x
x = 7,304,783,668.60/98,864.28 - Step 6: Final answer
x = 73,886.99
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1.5x scale
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.