Finding the Fourth Proportional to 73,810.78, 101,855.14 and 41,978.99
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Solution
The fourth proportional to 73,810.78, 101,855.14 and 41,978.99 is: 57,928.89
Step by Step Solution
- Step 1: Write the proportion equation
73,810.78 : 101,855.14 = 41,978.99 : x - Step 2: Convert to fraction form
73,810.78/101,855.14 = 41,978.99/x - Step 3: Cross multiply
73,810.78x = 101,855.14 × 41,978.99 - Step 4: Simplify right side
73,810.78x = 4,275,776,053.20 - Step 5: Solve for x
x = 4,275,776,053.20/73,810.78 - Step 6: Final answer
x = 57,928.89
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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.