Finding the Fourth Proportional to 77,308.62, 115,860.06 and 50,620.74
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Solution
The fourth proportional to 77,308.62, 115,860.06 and 50,620.74 is: 75,863.75
Step by Step Solution
- Step 1: Write the proportion equation
77,308.62 : 115,860.06 = 50,620.74 : x - Step 2: Convert to fraction form
77,308.62/115,860.06 = 50,620.74/x - Step 3: Cross multiply
77,308.62x = 115,860.06 × 50,620.74 - Step 4: Simplify right side
77,308.62x = 5,864,921,973.64 - Step 5: Solve for x
x = 5,864,921,973.64/77,308.62 - Step 6: Final answer
x = 75,863.75
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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.