Finding the Fourth Proportional to 75,519.16, 113,283.18 and 31,130.58
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Solution
The fourth proportional to 75,519.16, 113,283.18 and 31,130.58 is: 46,697.70
Step by Step Solution
- Step 1: Write the proportion equation
75,519.16 : 113,283.18 = 31,130.58 : x - Step 2: Convert to fraction form
75,519.16/113,283.18 = 31,130.58/x - Step 3: Cross multiply
75,519.16x = 113,283.18 × 31,130.58 - Step 4: Simplify right side
75,519.16x = 3,526,570,972.79 - Step 5: Solve for x
x = 3,526,570,972.79/75,519.16 - Step 6: Final answer
x = 46,697.70
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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.