Finding the Fourth Proportional to 72,074.36, 108,130.98 and 65,134.28
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Solution
The fourth proportional to 72,074.36, 108,130.98 and 65,134.28 is: 97,718.99
Step by Step Solution
- Step 1: Write the proportion equation
72,074.36 : 108,130.98 = 65,134.28 : x - Step 2: Convert to fraction form
72,074.36/108,130.98 = 65,134.28/x - Step 3: Cross multiply
72,074.36x = 108,130.98 × 65,134.28 - Step 4: Simplify right side
72,074.36x = 7,043,033,527.99 - Step 5: Solve for x
x = 7,043,033,527.99/72,074.36 - Step 6: Final answer
x = 97,718.99
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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.