Finding the Fourth Proportional to 75,765.87, 113,681.58 and 40,664.52
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Solution
The fourth proportional to 75,765.87, 113,681.58 and 40,664.52 is: 61,014.37
Step by Step Solution
- Step 1: Write the proportion equation
75,765.87 : 113,681.58 = 40,664.52 : x - Step 2: Convert to fraction form
75,765.87/113,681.58 = 40,664.52/x - Step 3: Cross multiply
75,765.87x = 113,681.58 × 40,664.52 - Step 4: Simplify right side
75,765.87x = 4,622,806,883.54 - Step 5: Solve for x
x = 4,622,806,883.54/75,765.87 - Step 6: Final answer
x = 61,014.37
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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.