Finding the Fourth Proportional to 85,841.00, 128,239.35 and 55,609.14
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Solution
The fourth proportional to 85,841.00, 128,239.35 and 55,609.14 is: 83,075.45
Step by Step Solution
- Step 1: Write the proportion equation
85,841.00 : 128,239.35 = 55,609.14 : x - Step 2: Convert to fraction form
85,841.00/128,239.35 = 55,609.14/x - Step 3: Cross multiply
85,841.00x = 128,239.35 × 55,609.14 - Step 4: Simplify right side
85,841.00x = 7,131,279,518.68 - Step 5: Solve for x
x = 7,131,279,518.68/85,841.00 - Step 6: Final answer
x = 83,075.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.