Finding the Fourth Proportional to 77,764.56, 107,304.84 and 43,774.80
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Solution
The fourth proportional to 77,764.56, 107,304.84 and 43,774.80 is: 60,403.45
Step by Step Solution
- Step 1: Write the proportion equation
77,764.56 : 107,304.84 = 43,774.80 : x - Step 2: Convert to fraction form
77,764.56/107,304.84 = 43,774.80/x - Step 3: Cross multiply
77,764.56x = 107,304.84 × 43,774.80 - Step 4: Simplify right side
77,764.56x = 4,697,247,910.03 - Step 5: Solve for x
x = 4,697,247,910.03/77,764.56 - Step 6: Final answer
x = 60,403.45
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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.