Finding the Fourth Proportional to 92,721.06, 127,953.95 and 50,279.09
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Solution
The fourth proportional to 92,721.06, 127,953.95 and 50,279.09 is: 69,384.53
Step by Step Solution
- Step 1: Write the proportion equation
92,721.06 : 127,953.95 = 50,279.09 : x - Step 2: Convert to fraction form
92,721.06/127,953.95 = 50,279.09/x - Step 3: Cross multiply
92,721.06x = 127,953.95 × 50,279.09 - Step 4: Simplify right side
92,721.06x = 6,433,407,276.74 - Step 5: Solve for x
x = 6,433,407,276.74/92,721.06 - Step 6: Final answer
x = 69,384.53
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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.