Finding the Fourth Proportional to 94,771.05, 130,677.42 and 77,489.49
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Solution
The fourth proportional to 94,771.05, 130,677.42 and 77,489.49 is: 106,848.32
Step by Step Solution
- Step 1: Write the proportion equation
94,771.05 : 130,677.42 = 77,489.49 : x - Step 2: Convert to fraction form
94,771.05/130,677.42 = 77,489.49/x - Step 3: Cross multiply
94,771.05x = 130,677.42 × 77,489.49 - Step 4: Simplify right side
94,771.05x = 10,126,127,120.36 - Step 5: Solve for x
x = 10,126,127,120.36/94,771.05 - Step 6: Final answer
x = 106,848.32
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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.