Finding the Fourth Proportional to 98,844.16, 136,414.71 and 56,409.07
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Solution
The fourth proportional to 98,844.16, 136,414.71 and 56,409.07 is: 77,850.09
Step by Step Solution
- Step 1: Write the proportion equation
98,844.16 : 136,414.71 = 56,409.07 : x - Step 2: Convert to fraction form
98,844.16/136,414.71 = 56,409.07/x - Step 3: Cross multiply
98,844.16x = 136,414.71 × 56,409.07 - Step 4: Simplify right side
98,844.16x = 7,695,025,961.30 - Step 5: Solve for x
x = 7,695,025,961.30/98,844.16 - Step 6: Final answer
x = 77,850.09
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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.