Finding the Fourth Proportional to 75,681.80, 113,534.70 and 25,766.60
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Solution
The fourth proportional to 75,681.80, 113,534.70 and 25,766.60 is: 38,653.99
Step by Step Solution
- Step 1: Write the proportion equation
75,681.80 : 113,534.70 = 25,766.60 : x - Step 2: Convert to fraction form
75,681.80/113,534.70 = 25,766.60/x - Step 3: Cross multiply
75,681.80x = 113,534.70 × 25,766.60 - Step 4: Simplify right side
75,681.80x = 2,925,403,201.02 - Step 5: Solve for x
x = 2,925,403,201.02/75,681.80 - Step 6: Final answer
x = 38,653.99
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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.