Finding the Fourth Proportional to 77,740.99, 107,281.26 and 43,749.43
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Solution
The fourth proportional to 77,740.99, 107,281.26 and 43,749.43 is: 60,373.48
Step by Step Solution
- Step 1: Write the proportion equation
77,740.99 : 107,281.26 = 43,749.43 : x - Step 2: Convert to fraction form
77,740.99/107,281.26 = 43,749.43/x - Step 3: Cross multiply
77,740.99x = 107,281.26 × 43,749.43 - Step 4: Simplify right side
77,740.99x = 4,693,493,974.68 - Step 5: Solve for x
x = 4,693,493,974.68/77,740.99 - Step 6: Final answer
x = 60,373.48
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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.