Finding the Fourth Proportional to 98,569.75, 136,026.26 and 53,857.75
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Solution
The fourth proportional to 98,569.75, 136,026.26 and 53,857.75 is: 74,323.70
Step by Step Solution
- Step 1: Write the proportion equation
98,569.75 : 136,026.26 = 53,857.75 : x - Step 2: Convert to fraction form
98,569.75/136,026.26 = 53,857.75/x - Step 3: Cross multiply
98,569.75x = 136,026.26 × 53,857.75 - Step 4: Simplify right side
98,569.75x = 7,326,068,304.52 - Step 5: Solve for x
x = 7,326,068,304.52/98,569.75 - Step 6: Final answer
x = 74,323.70
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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.