Finding the Fourth Proportional to 77,749.03, 107,294.11 and 43,758.19
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Solution
The fourth proportional to 77,749.03, 107,294.11 and 43,758.19 is: 60,386.55
Step by Step Solution
- Step 1: Write the proportion equation
77,749.03 : 107,294.11 = 43,758.19 : x - Step 2: Convert to fraction form
77,749.03/107,294.11 = 43,758.19/x - Step 3: Cross multiply
77,749.03x = 107,294.11 × 43,758.19 - Step 4: Simplify right side
77,749.03x = 4,694,996,051.26 - Step 5: Solve for x
x = 4,694,996,051.26/77,749.03 - Step 6: Final answer
x = 60,386.55
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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.