Finding the Fourth Proportional to 76,954.80, 115,237.80 and 61,402.80
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Solution
The fourth proportional to 76,954.80, 115,237.80 and 61,402.80 is: 91,949.09
Step by Step Solution
- Step 1: Write the proportion equation
76,954.80 : 115,237.80 = 61,402.80 : x - Step 2: Convert to fraction form
76,954.80/115,237.80 = 61,402.80/x - Step 3: Cross multiply
76,954.80x = 115,237.80 × 61,402.80 - Step 4: Simplify right side
76,954.80x = 7,075,923,585.84 - Step 5: Solve for x
x = 7,075,923,585.84/76,954.80 - Step 6: Final answer
x = 91,949.09
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1.5x scale
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.