Finding the Fourth Proportional to 98,679.44, 136,174.92 and 53,967.44
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Solution
The fourth proportional to 98,679.44, 136,174.92 and 53,967.44 is: 74,473.59
Step by Step Solution
- Step 1: Write the proportion equation
98,679.44 : 136,174.92 = 53,967.44 : x - Step 2: Convert to fraction form
98,679.44/136,174.92 = 53,967.44/x - Step 3: Cross multiply
98,679.44x = 136,174.92 × 53,967.44 - Step 4: Simplify right side
98,679.44x = 7,349,011,824.60 - Step 5: Solve for x
x = 7,349,011,824.60/98,679.44 - Step 6: Final answer
x = 74,473.59
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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.