Finding the Fourth Proportional to 83,824.62, 125,733.66 and 28,420.62
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Solution
The fourth proportional to 83,824.62, 125,733.66 and 28,420.62 is: 42,629.82
Step by Step Solution
- Step 1: Write the proportion equation
83,824.62 : 125,733.66 = 28,420.62 : x - Step 2: Convert to fraction form
83,824.62/125,733.66 = 28,420.62/x - Step 3: Cross multiply
83,824.62x = 125,733.66 × 28,420.62 - Step 4: Simplify right side
83,824.62x = 3,573,428,572.07 - Step 5: Solve for x
x = 3,573,428,572.07/83,824.62 - Step 6: Final answer
x = 42,629.82
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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.