Finding the Fourth Proportional to 77,566.74, 107,043.55 and 43,114.70
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Solution
The fourth proportional to 77,566.74, 107,043.55 and 43,114.70 is: 59,499.09
Step by Step Solution
- Step 1: Write the proportion equation
77,566.74 : 107,043.55 = 43,114.70 : x - Step 2: Convert to fraction form
77,566.74/107,043.55 = 43,114.70/x - Step 3: Cross multiply
77,566.74x = 107,043.55 × 43,114.70 - Step 4: Simplify right side
77,566.74x = 4,615,150,329.61 - Step 5: Solve for x
x = 4,615,150,329.61/77,566.74 - Step 6: Final answer
x = 59,499.09
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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.