Finding the Fourth Proportional to 98,946.14, 136,544.12 and 53,623.72
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Solution
The fourth proportional to 98,946.14, 136,544.12 and 53,623.72 is: 73,999.90
Step by Step Solution
- Step 1: Write the proportion equation
98,946.14 : 136,544.12 = 53,623.72 : x - Step 2: Convert to fraction form
98,946.14/136,544.12 = 53,623.72/x - Step 3: Cross multiply
98,946.14x = 136,544.12 × 53,623.72 - Step 4: Simplify right side
98,946.14x = 7,322,003,658.53 - Step 5: Solve for x
x = 7,322,003,658.53/98,946.14 - Step 6: Final answer
x = 73,999.90
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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.