Finding the Fourth Proportional to 85,276.67, 127,930.80 and 29,113.70
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Solution
The fourth proportional to 85,276.67, 127,930.80 and 29,113.70 is: 43,675.94
Step by Step Solution
- Step 1: Write the proportion equation
85,276.67 : 127,930.80 = 29,113.70 : x - Step 2: Convert to fraction form
85,276.67/127,930.80 = 29,113.70/x - Step 3: Cross multiply
85,276.67x = 127,930.80 × 29,113.70 - Step 4: Simplify right side
85,276.67x = 3,724,538,931.96 - Step 5: Solve for x
x = 3,724,538,931.96/85,276.67 - Step 6: Final answer
x = 43,675.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.