Finding the Fourth Proportional to 92,845.76, 128,148.21 and 58,901.09
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Solution
The fourth proportional to 92,845.76, 128,148.21 and 58,901.09 is: 81,296.86
Step by Step Solution
- Step 1: Write the proportion equation
92,845.76 : 128,148.21 = 58,901.09 : x - Step 2: Convert to fraction form
92,845.76/128,148.21 = 58,901.09/x - Step 3: Cross multiply
92,845.76x = 128,148.21 × 58,901.09 - Step 4: Simplify right side
92,845.76x = 7,548,068,609.81 - Step 5: Solve for x
x = 7,548,068,609.81/92,845.76 - Step 6: Final answer
x = 81,296.86
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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.