Finding the Fourth Proportional to 86,097.74, 129,075.53 and 38,032.13
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Solution
The fourth proportional to 86,097.74, 129,075.53 and 38,032.13 is: 57,016.80
Step by Step Solution
- Step 1: Write the proportion equation
86,097.74 : 129,075.53 = 38,032.13 : x - Step 2: Convert to fraction form
86,097.74/129,075.53 = 38,032.13/x - Step 3: Cross multiply
86,097.74x = 129,075.53 × 38,032.13 - Step 4: Simplify right side
86,097.74x = 4,909,017,469.31 - Step 5: Solve for x
x = 4,909,017,469.31/86,097.74 - Step 6: Final answer
x = 57,016.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.