Finding the Fourth Proportional to 92,918.97, 128,224.08 and 52,631.93
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Solution
The fourth proportional to 92,918.97, 128,224.08 and 52,631.93 is: 72,629.73
Step by Step Solution
- Step 1: Write the proportion equation
92,918.97 : 128,224.08 = 52,631.93 : x - Step 2: Convert to fraction form
92,918.97/128,224.08 = 52,631.93/x - Step 3: Cross multiply
92,918.97x = 128,224.08 × 52,631.93 - Step 4: Simplify right side
92,918.97x = 6,748,680,180.13 - Step 5: Solve for x
x = 6,748,680,180.13/92,918.97 - Step 6: Final answer
x = 72,629.73
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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.