Finding the Fourth Proportional to 92,378.79, 127,482.66 and 49,937.31
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Solution
The fourth proportional to 92,378.79, 127,482.66 and 49,937.31 is: 68,913.45
Step by Step Solution
- Step 1: Write the proportion equation
92,378.79 : 127,482.66 = 49,937.31 : x - Step 2: Convert to fraction form
92,378.79/127,482.66 = 49,937.31/x - Step 3: Cross multiply
92,378.79x = 127,482.66 × 49,937.31 - Step 4: Simplify right side
92,378.79x = 6,366,141,112.04 - Step 5: Solve for x
x = 6,366,141,112.04/92,378.79 - Step 6: Final answer
x = 68,913.45
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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.