Finding the Fourth Proportional to 76,996.11, 115,494.17 and 28,973.75
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Solution
The fourth proportional to 76,996.11, 115,494.17 and 28,973.75 is: 43,460.62
Step by Step Solution
- Step 1: Write the proportion equation
76,996.11 : 115,494.17 = 28,973.75 : x - Step 2: Convert to fraction form
76,996.11/115,494.17 = 28,973.75/x - Step 3: Cross multiply
76,996.11x = 115,494.17 × 28,973.75 - Step 4: Simplify right side
76,996.11x = 3,346,298,485.70 - Step 5: Solve for x
x = 3,346,298,485.70/76,996.11 - Step 6: Final answer
x = 43,460.62
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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.